tabs are as useful as a hole in the head

1 files changed, 384 insertions, 384 deletions

diff --git a/src/udev-builtin-path_id.c b/src/udev-builtin-path_id.c
index 049e89b277..fa4d6fb5fd 100644
--- a/src/udev-builtin-path_id.c
+++ b/src/udev-builtin-path_id.c
@@ -34,30 +34,30 @@
 
 static int path_prepend(char **path, const char *fmt, ...)
 {
-	va_list va;
-	char *pre;
-	int err = 0;
-
-	va_start(va, fmt);
-	err = vasprintf(&pre, fmt, va);
-	va_end(va);
-	if (err < 0)
-		goto out;
-
-	if (*path != NULL) {
-		char *new;
-
-		err = asprintf(&new, "%s-%s", pre, *path);
-		free(pre);
-		if (err < 0)
-			goto out;
-		free(*path);
-		*path = new;
-	} else {
-		*path = pre;
-	}
+        va_list va;
+        char *pre;
+        int err = 0;
+
+        va_start(va, fmt);
+        err = vasprintf(&pre, fmt, va);
+        va_end(va);
+        if (err < 0)
+                goto out;
+
+        if (*path != NULL) {
+                char *new;
+
+                err = asprintf(&new, "%s-%s", pre, *path);
+                free(pre);
+                if (err < 0)
+                        goto out;
+                free(*path);
+                *path = new;
+        } else {
+                *path = pre;
+        }
 out:
-	return err;
+        return err;
 }
 
 /*
@@ -66,422 +66,422 @@ out:
 */
 static int format_lun_number(struct udev_device *dev, char **path)
 {
-	unsigned long lun = strtoul(udev_device_get_sysnum(dev), NULL, 10);
+        unsigned long lun = strtoul(udev_device_get_sysnum(dev), NULL, 10);
 
-	/* address method 0, peripheral device addressing with bus id of zero */
-	if (lun < 256)
-		return path_prepend(path, "lun-%d", lun);
-	/* handle all other lun addressing methods by using a variant of the original lun format */
-	return path_prepend(path, "lun-0x%04x%04x00000000", (lun & 0xffff), (lun >> 16) & 0xffff);
+        /* address method 0, peripheral device addressing with bus id of zero */
+        if (lun < 256)
+                return path_prepend(path, "lun-%d", lun);
+        /* handle all other lun addressing methods by using a variant of the original lun format */
+        return path_prepend(path, "lun-0x%04x%04x00000000", (lun & 0xffff), (lun >> 16) & 0xffff);
 }
 
 static struct udev_device *skip_subsystem(struct udev_device *dev, const char *subsys)
 {
-	struct udev_device *parent = dev;
-
-	while (parent != NULL) {
-		const char *subsystem;
-
-		subsystem = udev_device_get_subsystem(parent);
-		if (subsystem == NULL || strcmp(subsystem, subsys) != 0)
-			break;
-		dev = parent;
-		parent = udev_device_get_parent(parent);
-	}
-	return dev;
+        struct udev_device *parent = dev;
+
+        while (parent != NULL) {
+                const char *subsystem;
+
+                subsystem = udev_device_get_subsystem(parent);
+                if (subsystem == NULL || strcmp(subsystem, subsys) != 0)
+                        break;
+                dev = parent;
+                parent = udev_device_get_parent(parent);
+        }
+        return dev;
 }
 
 static struct udev_device *handle_scsi_fibre_channel(struct udev_device *parent, char **path)
 {
-	struct udev *udev  = udev_device_get_udev(parent);
-	struct udev_device *targetdev;
-	struct udev_device *fcdev = NULL;
-	const char *port;
-	char *lun = NULL;;
-
-	targetdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_target");
-	if (targetdev == NULL)
-		return NULL;
-
-	fcdev = udev_device_new_from_subsystem_sysname(udev, "fc_transport", udev_device_get_sysname(targetdev));
-	if (fcdev == NULL)
-		return NULL;
-	port = udev_device_get_sysattr_value(fcdev, "port_name");
-	if (port == NULL) {
-		parent = NULL;
-		goto out;
-	}
-
-	format_lun_number(parent, &lun);
-	path_prepend(path, "fc-%s-%s", port, lun);
-	if (lun)
-		free(lun);
+        struct udev *udev  = udev_device_get_udev(parent);
+        struct udev_device *targetdev;
+        struct udev_device *fcdev = NULL;
+        const char *port;
+        char *lun = NULL;;
+
+        targetdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_target");
+        if (targetdev == NULL)
+                return NULL;
+
+        fcdev = udev_device_new_from_subsystem_sysname(udev, "fc_transport", udev_device_get_sysname(targetdev));
+        if (fcdev == NULL)
+                return NULL;
+        port = udev_device_get_sysattr_value(fcdev, "port_name");
+        if (port == NULL) {
+                parent = NULL;
+                goto out;
+        }
+
+        format_lun_number(parent, &lun);
+        path_prepend(path, "fc-%s-%s", port, lun);
+        if (lun)
+                free(lun);
 out:
-	udev_device_unref(fcdev);
-	return parent;
+        udev_device_unref(fcdev);
+        return parent;
 }
 
 static struct udev_device *handle_scsi_sas(struct udev_device *parent, char **path)
 {
-	struct udev *udev  = udev_device_get_udev(parent);
-	struct udev_device *targetdev;
-	struct udev_device *target_parent;
-	struct udev_device *sasdev;
-	const char *sas_address;
-	char *lun = NULL;
-
-	targetdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_target");
-	if (targetdev == NULL)
-		return NULL;
-
-	target_parent = udev_device_get_parent(targetdev);
-	if (target_parent == NULL)
-		return NULL;
-
-	sasdev = udev_device_new_from_subsystem_sysname(udev, "sas_device",
-				udev_device_get_sysname(target_parent));
-	if (sasdev == NULL)
-		return NULL;
-
-	sas_address = udev_device_get_sysattr_value(sasdev, "sas_address");
-	if (sas_address == NULL) {
-		parent = NULL;
-		goto out;
-	}
-
-	format_lun_number(parent, &lun);
-	path_prepend(path, "sas-%s-%s", sas_address, lun);
-	if (lun)
-		free(lun);
+        struct udev *udev  = udev_device_get_udev(parent);
+        struct udev_device *targetdev;
+        struct udev_device *target_parent;
+        struct udev_device *sasdev;
+        const char *sas_address;
+        char *lun = NULL;
+
+        targetdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_target");
+        if (targetdev == NULL)
+                return NULL;
+
+        target_parent = udev_device_get_parent(targetdev);
+        if (target_parent == NULL)
+                return NULL;
+
+        sasdev = udev_device_new_from_subsystem_sysname(udev, "sas_device",
+                                udev_device_get_sysname(target_parent));
+        if (sasdev == NULL)
+                return NULL;
+
+        sas_address = udev_device_get_sysattr_value(sasdev, "sas_address");
+        if (sas_address == NULL) {
+                parent = NULL;
+                goto out;
+        }
+
+        format_lun_number(parent, &lun);
+        path_prepend(path, "sas-%s-%s", sas_address, lun);
+        if (lun)
+                free(lun);
 out:
-	udev_device_unref(sasdev);
-	return parent;
+        udev_device_unref(sasdev);
+        return parent;
 }
 
 static struct udev_device *handle_scsi_iscsi(struct udev_device *parent, char **path)
 {
-	struct udev *udev  = udev_device_get_udev(parent);
-	struct udev_device *transportdev;
-	struct udev_device *sessiondev = NULL;
-	const char *target;
-	char *connname;
-	struct udev_device *conndev = NULL;
-	const char *addr;
-	const char *port;
-	char *lun = NULL;
-
-	/* find iscsi session */
-	transportdev = parent;
-	for (;;) {
-		transportdev = udev_device_get_parent(transportdev);
-		if (transportdev == NULL)
-			return NULL;
-		if (strncmp(udev_device_get_sysname(transportdev), "session", 7) == 0)
-			break;
-	}
-
-	/* find iscsi session device */
-	sessiondev = udev_device_new_from_subsystem_sysname(udev, "iscsi_session", udev_device_get_sysname(transportdev));
-	if (sessiondev == NULL)
-		return NULL;
-	target = udev_device_get_sysattr_value(sessiondev, "targetname");
-	if (target == NULL) {
-		parent = NULL;
-		goto out;
-	}
-
-	if (asprintf(&connname, "connection%s:0", udev_device_get_sysnum(transportdev)) < 0) {
-		parent = NULL;
-		goto out;
-	}
-	conndev = udev_device_new_from_subsystem_sysname(udev, "iscsi_connection", connname);
-	free(connname);
-	if (conndev == NULL) {
-		parent = NULL;
-		goto out;
-	}
-	addr = udev_device_get_sysattr_value(conndev, "persistent_address");
-	port = udev_device_get_sysattr_value(conndev, "persistent_port");
-	if (addr == NULL || port == NULL) {
-		parent = NULL;
-		goto out;
-	}
-
-	format_lun_number(parent, &lun);
-	path_prepend(path, "ip-%s:%s-iscsi-%s-%s", addr, port, target, lun);
-	if (lun)
-		free(lun);
+        struct udev *udev  = udev_device_get_udev(parent);
+        struct udev_device *transportdev;
+        struct udev_device *sessiondev = NULL;
+        const char *target;
+        char *connname;
+        struct udev_device *conndev = NULL;
+        const char *addr;
+        const char *port;
+        char *lun = NULL;
+
+        /* find iscsi session */
+        transportdev = parent;
+        for (;;) {
+                transportdev = udev_device_get_parent(transportdev);
+                if (transportdev == NULL)
+                        return NULL;
+                if (strncmp(udev_device_get_sysname(transportdev), "session", 7) == 0)
+                        break;
+        }
+
+        /* find iscsi session device */
+        sessiondev = udev_device_new_from_subsystem_sysname(udev, "iscsi_session", udev_device_get_sysname(transportdev));
+        if (sessiondev == NULL)
+                return NULL;
+        target = udev_device_get_sysattr_value(sessiondev, "targetname");
+        if (target == NULL) {
+                parent = NULL;
+                goto out;
+        }
+
+        if (asprintf(&connname, "connection%s:0", udev_device_get_sysnum(transportdev)) < 0) {
+                parent = NULL;
+                goto out;
+        }
+        conndev = udev_device_new_from_subsystem_sysname(udev, "iscsi_connection", connname);
+        free(connname);
+        if (conndev == NULL) {
+                parent = NULL;
+                goto out;
+        }
+        addr = udev_device_get_sysattr_value(conndev, "persistent_address");
+        port = udev_device_get_sysattr_value(conndev, "persistent_port");
+        if (addr == NULL || port == NULL) {
+                parent = NULL;
+                goto out;
+        }
+
+        format_lun_number(parent, &lun);
+        path_prepend(path, "ip-%s:%s-iscsi-%s-%s", addr, port, target, lun);
+        if (lun)
+                free(lun);
 out:
-	udev_device_unref(sessiondev);
-	udev_device_unref(conndev);
-	return parent;
+        udev_device_unref(sessiondev);
+        udev_device_unref(conndev);
+        return parent;
 }
 
 static struct udev_device *handle_scsi_default(struct udev_device *parent, char **path)
 {
-	struct udev_device *hostdev;
-	int host, bus, target, lun;
-	const char *name;
-	char *base;
-	char *pos;
-	DIR *dir;
-	struct dirent *dent;
-	int basenum;
-
-	hostdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_host");
-	if (hostdev == NULL)
-		return NULL;
-
-	name = udev_device_get_sysname(parent);
-	if (sscanf(name, "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4)
-		return NULL;
-
-	/* rebase host offset to get the local relative number */
-	basenum = -1;
-	base = strdup(udev_device_get_syspath(hostdev));
-	if (base == NULL)
-		return NULL;
-	pos = strrchr(base, '/');
-	if (pos == NULL) {
-		parent = NULL;
-		goto out;
-	}
-	pos[0] = '\0';
-	dir = opendir(base);
-	if (dir == NULL) {
-		parent = NULL;
-		goto out;
-	}
-	for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-		char *rest;
-		int i;
-
-		if (dent->d_name[0] == '.')
-			continue;
-		if (dent->d_type != DT_DIR && dent->d_type != DT_LNK)
-			continue;
-		if (strncmp(dent->d_name, "host", 4) != 0)
-			continue;
-		i = strtoul(&dent->d_name[4], &rest, 10);
-		if (rest[0] != '\0')
-			continue;
-		if (basenum == -1 || i < basenum)
-			basenum = i;
-	}
-	closedir(dir);
-	if (basenum == -1) {
-		parent = NULL;
-		goto out;
-	}
-	host -= basenum;
-
-	path_prepend(path, "scsi-%u:%u:%u:%u", host, bus, target, lun);
+        struct udev_device *hostdev;
+        int host, bus, target, lun;
+        const char *name;
+        char *base;
+        char *pos;
+        DIR *dir;
+        struct dirent *dent;
+        int basenum;
+
+        hostdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_host");
+        if (hostdev == NULL)
+                return NULL;
+
+        name = udev_device_get_sysname(parent);
+        if (sscanf(name, "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4)
+                return NULL;
+
+        /* rebase host offset to get the local relative number */
+        basenum = -1;
+        base = strdup(udev_device_get_syspath(hostdev));
+        if (base == NULL)
+                return NULL;
+        pos = strrchr(base, '/');
+        if (pos == NULL) {
+                parent = NULL;
+                goto out;
+        }
+        pos[0] = '\0';
+        dir = opendir(base);
+        if (dir == NULL) {
+                parent = NULL;
+                goto out;
+        }
+        for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+                char *rest;
+                int i;
+
+                if (dent->d_name[0] == '.')
+                        continue;
+                if (dent->d_type != DT_DIR && dent->d_type != DT_LNK)
+                        continue;
+                if (strncmp(dent->d_name, "host", 4) != 0)
+                        continue;
+                i = strtoul(&dent->d_name[4], &rest, 10);
+                if (rest[0] != '\0')
+                        continue;
+                if (basenum == -1 || i < basenum)
+                        basenum = i;
+        }
+        closedir(dir);
+        if (basenum == -1) {
+                parent = NULL;
+                goto out;
+        }
+        host -= basenum;
+
+        path_prepend(path, "scsi-%u:%u:%u:%u", host, bus, target, lun);
 out:
-	free(base);
-	return hostdev;
+        free(base);
+        return hostdev;
 }
 
 static struct udev_device *handle_scsi(struct udev_device *parent, char **path)
 {
-	const char *devtype;
-	const char *name;
-	const char *id;
-
-	devtype = udev_device_get_devtype(parent);
-	if (devtype == NULL || strcmp(devtype, "scsi_device") != 0)
-		return parent;
-
-	/* firewire */
-	id = udev_device_get_sysattr_value(parent, "ieee1394_id");
-	if (id != NULL) {
-		parent = skip_subsystem(parent, "scsi");
-		path_prepend(path, "ieee1394-0x%s", id);
-		goto out;
-	}
-
-	/* lousy scsi sysfs does not have a "subsystem" for the transport */
-	name = udev_device_get_syspath(parent);
-
-	if (strstr(name, "/rport-") != NULL) {
-		parent = handle_scsi_fibre_channel(parent, path);
-		goto out;
-	}
-
-	if (strstr(name, "/end_device-") != NULL) {
-		parent = handle_scsi_sas(parent, path);
-		goto out;
-	}
-
-	if (strstr(name, "/session") != NULL) {
-		parent = handle_scsi_iscsi(parent, path);
-		goto out;
-	}
-
-	parent = handle_scsi_default(parent, path);
+        const char *devtype;
+        const char *name;
+        const char *id;
+
+        devtype = udev_device_get_devtype(parent);
+        if (devtype == NULL || strcmp(devtype, "scsi_device") != 0)
+                return parent;
+
+        /* firewire */
+        id = udev_device_get_sysattr_value(parent, "ieee1394_id");
+        if (id != NULL) {
+                parent = skip_subsystem(parent, "scsi");
+                path_prepend(path, "ieee1394-0x%s", id);
+                goto out;
+        }
+
+        /* lousy scsi sysfs does not have a "subsystem" for the transport */
+        name = udev_device_get_syspath(parent);
+
+        if (strstr(name, "/rport-") != NULL) {
+                parent = handle_scsi_fibre_channel(parent, path);
+                goto out;
+        }
+
+        if (strstr(name, "/end_device-") != NULL) {
+                parent = handle_scsi_sas(parent, path);
+                goto out;
+        }
+
+        if (strstr(name, "/session") != NULL) {
+                parent = handle_scsi_iscsi(parent, path);
+                goto out;
+        }
+
+        parent = handle_scsi_default(parent, path);
 out:
-	return parent;
+        return parent;
 }
 
 static void handle_scsi_tape(struct udev_device *dev, char **path)
 {
-	const char *name;
+        const char *name;
 
-	/* must be the last device in the syspath */
-	if (*path != NULL)
-		return;
+        /* must be the last device in the syspath */
+        if (*path != NULL)
+                return;
 
-	name = udev_device_get_sysname(dev);
-	if (strncmp(name, "nst", 3) == 0 && strchr("lma", name[3]) != NULL)
-		path_prepend(path, "nst%c", name[3]);
-	else if (strncmp(name, "st", 2) == 0 && strchr("lma", name[2]) != NULL)
-		path_prepend(path, "st%c", name[2]);
+        name = udev_device_get_sysname(dev);
+        if (strncmp(name, "nst", 3) == 0 && strchr("lma", name[3]) != NULL)
+                path_prepend(path, "nst%c", name[3]);
+        else if (strncmp(name, "st", 2) == 0 && strchr("lma", name[2]) != NULL)
+                path_prepend(path, "st%c", name[2]);
 }
 
 static struct udev_device *handle_usb(struct udev_device *parent, char **path)
 {
-	const char *devtype;
-	const char *str;
-	const char *port;
-
-	devtype = udev_device_get_devtype(parent);
-	if (devtype == NULL)
-		return parent;
-	if (strcmp(devtype, "usb_interface") != 0 && strcmp(devtype, "usb_device") != 0)
-		return parent;
-
-	str = udev_device_get_sysname(parent);
-	port = strchr(str, '-');
-	if (port == NULL)
-		return parent;
-	port++;
-
-	parent = skip_subsystem(parent, "usb");
-	path_prepend(path, "usb-0:%s", port);
-	return parent;
+        const char *devtype;
+        const char *str;
+        const char *port;
+
+        devtype = udev_device_get_devtype(parent);
+        if (devtype == NULL)
+                return parent;
+        if (strcmp(devtype, "usb_interface") != 0 && strcmp(devtype, "usb_device") != 0)
+                return parent;
+
+        str = udev_device_get_sysname(parent);
+        port = strchr(str, '-');
+        if (port == NULL)
+                return parent;
+        port++;
+
+        parent = skip_subsystem(parent, "usb");
+        path_prepend(path, "usb-0:%s", port);
+        return parent;
 }
 
 static struct udev_device *handle_cciss(struct udev_device *parent, char **path)
 {
-	return NULL;
+        return NULL;
 }
 
 static struct udev_device *handle_ccw(struct udev_device *parent, struct udev_device *dev, char **path)
 {
-	struct udev_device *scsi_dev;
-
-	scsi_dev = udev_device_get_parent_with_subsystem_devtype(dev, "scsi", "scsi_device");
-	if (scsi_dev != NULL) {
-		const char *wwpn;
-		const char *lun;
-		const char *hba_id;
-
-		hba_id = udev_device_get_sysattr_value(scsi_dev, "hba_id");
-		wwpn = udev_device_get_sysattr_value(scsi_dev, "wwpn");
-		lun = udev_device_get_sysattr_value(scsi_dev, "fcp_lun");
-		if (hba_id != NULL && lun != NULL && wwpn != NULL) {
-			path_prepend(path, "ccw-%s-zfcp-%s:%s", hba_id, wwpn, lun);
-			goto out;
-		}
-	}
-
-	path_prepend(path, "ccw-%s", udev_device_get_sysname(parent));
+        struct udev_device *scsi_dev;
+
+        scsi_dev = udev_device_get_parent_with_subsystem_devtype(dev, "scsi", "scsi_device");
+        if (scsi_dev != NULL) {
+                const char *wwpn;
+                const char *lun;
+                const char *hba_id;
+
+                hba_id = udev_device_get_sysattr_value(scsi_dev, "hba_id");
+                wwpn = udev_device_get_sysattr_value(scsi_dev, "wwpn");
+                lun = udev_device_get_sysattr_value(scsi_dev, "fcp_lun");
+                if (hba_id != NULL && lun != NULL && wwpn != NULL) {
+                        path_prepend(path, "ccw-%s-zfcp-%s:%s", hba_id, wwpn, lun);
+                        goto out;
+                }
+        }
+
+        path_prepend(path, "ccw-%s", udev_device_get_sysname(parent));
 out:
-	parent = skip_subsystem(parent, "ccw");
-	return parent;
+        parent = skip_subsystem(parent, "ccw");
+        return parent;
 }
 
 static int builtin_path_id(struct udev_device *dev, int argc, char *argv[], bool test)
 {
-	struct udev_device *parent;
-	char *path = NULL;
-
-	/* S390 ccw bus */
-	parent = udev_device_get_parent_with_subsystem_devtype(dev, "ccw", NULL);
-	if (parent != NULL) {
-		handle_ccw(parent, dev, &path);
-		goto out;
-	}
-
-	/* walk up the chain of devices and compose path */
-	parent = dev;
-	while (parent != NULL) {
-		const char *subsys;
-
-		subsys = udev_device_get_subsystem(parent);
-		if (subsys == NULL) {
-			;
-		} else if (strcmp(subsys, "scsi_tape") == 0) {
-			handle_scsi_tape(parent, &path);
-		} else if (strcmp(subsys, "scsi") == 0) {
-			parent = handle_scsi(parent, &path);
-		} else if (strcmp(subsys, "cciss") == 0) {
-			handle_cciss(parent, &path);
-		} else if (strcmp(subsys, "usb") == 0) {
-			parent = handle_usb(parent, &path);
-		} else if (strcmp(subsys, "serio") == 0) {
-			path_prepend(&path, "serio-%s", udev_device_get_sysnum(parent));
-			parent = skip_subsystem(parent, "serio");
-		} else if (strcmp(subsys, "pci") == 0) {
-			path_prepend(&path, "pci-%s", udev_device_get_sysname(parent));
-			parent = skip_subsystem(parent, "pci");
-		} else if (strcmp(subsys, "platform") == 0) {
-			path_prepend(&path, "platform-%s", udev_device_get_sysname(parent));
-			parent = skip_subsystem(parent, "platform");
-		} else if (strcmp(subsys, "acpi") == 0) {
-			path_prepend(&path, "acpi-%s", udev_device_get_sysname(parent));
-			parent = skip_subsystem(parent, "acpi");
-		} else if (strcmp(subsys, "xen") == 0) {
-			path_prepend(&path, "xen-%s", udev_device_get_sysname(parent));
-			parent = skip_subsystem(parent, "xen");
-		} else if (strcmp(subsys, "virtio") == 0) {
-			path_prepend(&path, "virtio-pci-%s", udev_device_get_sysname(parent));
-			parent = skip_subsystem(parent, "virtio");
-		}
-
-		parent = udev_device_get_parent(parent);
-	}
+        struct udev_device *parent;
+        char *path = NULL;
+
+        /* S390 ccw bus */
+        parent = udev_device_get_parent_with_subsystem_devtype(dev, "ccw", NULL);
+        if (parent != NULL) {
+                handle_ccw(parent, dev, &path);
+                goto out;
+        }
+
+        /* walk up the chain of devices and compose path */
+        parent = dev;
+        while (parent != NULL) {
+                const char *subsys;
+
+                subsys = udev_device_get_subsystem(parent);
+                if (subsys == NULL) {
+                        ;
+                } else if (strcmp(subsys, "scsi_tape") == 0) {
+                        handle_scsi_tape(parent, &path);
+                } else if (strcmp(subsys, "scsi") == 0) {
+                        parent = handle_scsi(parent, &path);
+                } else if (strcmp(subsys, "cciss") == 0) {
+                        handle_cciss(parent, &path);
+                } else if (strcmp(subsys, "usb") == 0) {
+                        parent = handle_usb(parent, &path);
+                } else if (strcmp(subsys, "serio") == 0) {
+                        path_prepend(&path, "serio-%s", udev_device_get_sysnum(parent));
+                        parent = skip_subsystem(parent, "serio");
+                } else if (strcmp(subsys, "pci") == 0) {
+                        path_prepend(&path, "pci-%s", udev_device_get_sysname(parent));
+                        parent = skip_subsystem(parent, "pci");
+                } else if (strcmp(subsys, "platform") == 0) {
+                        path_prepend(&path, "platform-%s", udev_device_get_sysname(parent));
+                        parent = skip_subsystem(parent, "platform");
+                } else if (strcmp(subsys, "acpi") == 0) {
+                        path_prepend(&path, "acpi-%s", udev_device_get_sysname(parent));
+                        parent = skip_subsystem(parent, "acpi");
+                } else if (strcmp(subsys, "xen") == 0) {
+                        path_prepend(&path, "xen-%s", udev_device_get_sysname(parent));
+                        parent = skip_subsystem(parent, "xen");
+                } else if (strcmp(subsys, "virtio") == 0) {
+                        path_prepend(&path, "virtio-pci-%s", udev_device_get_sysname(parent));
+                        parent = skip_subsystem(parent, "virtio");
+                }
+
+                parent = udev_device_get_parent(parent);
+        }
 out:
-	if (path != NULL) {
-		char tag[UTIL_NAME_SIZE];
-		size_t i;
-		const char *p;
-
-		/* compose valid udev tag name */
-		for (p = path, i = 0; *p; p++) {
-			if ((*p >= '0' && *p <= '9') ||
-			    (*p >= 'A' && *p <= 'Z') ||
-			    (*p >= 'a' && *p <= 'z') ||
-			    *p == '-') {
-				tag[i++] = *p;
-				continue;
-			}
-
-			/* skip all leading '_' */
-			if (i == 0)
-				continue;
-
-			/* avoid second '_' */
-			if (tag[i-1] == '_')
-				continue;
-
-			tag[i++] = '_';
-		}
-		/* strip trailing '_' */
-		while (i > 0 && tag[i-1] == '_')
-			i--;
-		tag[i] = '\0';
-
-		udev_builtin_add_property(dev, test, "ID_PATH", path);
-		udev_builtin_add_property(dev, test, "ID_PATH_TAG", tag);
-		free(path);
-		return EXIT_SUCCESS;
-	}
-	return EXIT_FAILURE;
+        if (path != NULL) {
+                char tag[UTIL_NAME_SIZE];
+                size_t i;
+                const char *p;
+
+                /* compose valid udev tag name */
+                for (p = path, i = 0; *p; p++) {
+                        if ((*p >= '0' && *p <= '9') ||
+                            (*p >= 'A' && *p <= 'Z') ||
+                            (*p >= 'a' && *p <= 'z') ||
+                            *p == '-') {
+                                tag[i++] = *p;
+                                continue;
+                        }
+
+                        /* skip all leading '_' */
+                        if (i == 0)
+                                continue;
+
+                        /* avoid second '_' */
+                        if (tag[i-1] == '_')
+                                continue;
+
+                        tag[i++] = '_';
+                }
+                /* strip trailing '_' */
+                while (i > 0 && tag[i-1] == '_')
+                        i--;
+                tag[i] = '\0';
+
+                udev_builtin_add_property(dev, test, "ID_PATH", path);
+                udev_builtin_add_property(dev, test, "ID_PATH_TAG", tag);
+                free(path);
+                return EXIT_SUCCESS;
+        }
+        return EXIT_FAILURE;
 }
 
 const struct udev_builtin udev_builtin_path_id = {
-	.name = "path_id",
-	.cmd = builtin_path_id,
-	.help = "compose persistent device path",
-	.run_once = true,
+        .name = "path_id",
+        .cmd = builtin_path_id,
+        .help = "compose persistent device path",
+        .run_once = true,
 };