diff options
Diffstat (limited to 'src/core/umount.c')
| -rw-r--r-- | src/core/umount.c | 143 |
1 files changed, 49 insertions, 94 deletions
diff --git a/src/core/umount.c b/src/core/umount.c index 1e95ad70dd..99dbe27c8f 100644 --- a/src/core/umount.c +++ b/src/core/umount.c @@ -27,7 +27,6 @@ #include <unistd.h> #include <linux/loop.h> #include <linux/dm-ioctl.h> -#include <libudev.h> #include "list.h" #include "mount-setup.h" @@ -35,6 +34,8 @@ #include "path-util.h" #include "util.h" #include "virt.h" +#include "libudev.h" +#include "udev-util.h" typedef struct MountPoint { char *path; @@ -201,145 +202,108 @@ finish: } static int loopback_list_get(MountPoint **head) { - int r; - struct udev *udev; - struct udev_enumerate *e = NULL; + _cleanup_udev_unref_ struct udev *udev; + _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; struct udev_list_entry *item = NULL, *first = NULL; assert(head); - if (!(udev = udev_new())) { - r = -ENOMEM; - goto finish; - } + udev = udev_new(); + if (!udev) + return -ENOMEM; - if (!(e = udev_enumerate_new(udev))) { - r = -ENOMEM; - goto finish; - } + e = udev_enumerate_new(udev); + if (!e) + return -ENOMEM; if (udev_enumerate_add_match_subsystem(e, "block") < 0 || udev_enumerate_add_match_sysname(e, "loop*") < 0 || - udev_enumerate_add_match_sysattr(e, "loop/backing_file", NULL) < 0) { - r = -EIO; - goto finish; - } + udev_enumerate_add_match_sysattr(e, "loop/backing_file", NULL) < 0) + return -EIO; - if (udev_enumerate_scan_devices(e) < 0) { - r = -EIO; - goto finish; - } + if (udev_enumerate_scan_devices(e) < 0) + return -EIO; first = udev_enumerate_get_list_entry(e); udev_list_entry_foreach(item, first) { MountPoint *lb; - struct udev_device *d; + _cleanup_udev_device_unref_ struct udev_device *d; char *loop; const char *dn; - if (!(d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)))) { - r = -ENOMEM; - goto finish; - } + d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)); + if (!d) + return -ENOMEM; - if (!(dn = udev_device_get_devnode(d))) { - udev_device_unref(d); + dn = udev_device_get_devnode(d); + if (!dn) continue; - } loop = strdup(dn); - udev_device_unref(d); - - if (!loop) { - r = -ENOMEM; - goto finish; - } + if (!loop) + return -ENOMEM; - if (!(lb = new0(MountPoint, 1))) { + lb = new0(MountPoint, 1); + if (!lb) { free(loop); - r = -ENOMEM; - goto finish; + return -ENOMEM; } lb->path = loop; LIST_PREPEND(MountPoint, mount_point, *head, lb); } - r = 0; - -finish: - if (e) - udev_enumerate_unref(e); - - if (udev) - udev_unref(udev); - - return r; + return 0; } static int dm_list_get(MountPoint **head) { - int r; - struct udev *udev; - struct udev_enumerate *e = NULL; + _cleanup_udev_unref_ struct udev *udev; + _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; struct udev_list_entry *item = NULL, *first = NULL; assert(head); - if (!(udev = udev_new())) { - r = -ENOMEM; - goto finish; - } + udev = udev_new(); + if (!udev) + return -ENOMEM; - if (!(e = udev_enumerate_new(udev))) { - r = -ENOMEM; - goto finish; - } + e = udev_enumerate_new(udev); + if (!e) + return -ENOMEM; if (udev_enumerate_add_match_subsystem(e, "block") < 0 || - udev_enumerate_add_match_sysname(e, "dm-*") < 0) { - r = -EIO; - goto finish; - } + udev_enumerate_add_match_sysname(e, "dm-*") < 0) + return -EIO; - if (udev_enumerate_scan_devices(e) < 0) { - r = -EIO; - goto finish; - } + if (udev_enumerate_scan_devices(e) < 0) + return -EIO; first = udev_enumerate_get_list_entry(e); udev_list_entry_foreach(item, first) { MountPoint *m; - struct udev_device *d; + _cleanup_udev_device_unref_ struct udev_device *d; dev_t devnum; char *node; const char *dn; - if (!(d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)))) { - r = -ENOMEM; - goto finish; - } + d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)); + if (!d) + return -ENOMEM; devnum = udev_device_get_devnum(d); dn = udev_device_get_devnode(d); - - if (major(devnum) == 0 || !dn) { - udev_device_unref(d); + if (major(devnum) == 0 || !dn) continue; - } node = strdup(dn); - udev_device_unref(d); - - if (!node) { - r = -ENOMEM; - goto finish; - } + if (!node) + return -ENOMEM; - if (!(m = new(MountPoint, 1))) { + m = new(MountPoint, 1); + if (!m) { free(node); - r = -ENOMEM; - goto finish; + return -ENOMEM; } m->path = node; @@ -347,16 +311,7 @@ static int dm_list_get(MountPoint **head) { LIST_PREPEND(MountPoint, mount_point, *head, m); } - r = 0; - -finish: - if (e) - udev_enumerate_unref(e); - - if (udev) - udev_unref(udev); - - return r; + return 0; } static int delete_loopback(const char *device) { |