diff options
Diffstat (limited to 'udev/udev-node.c')
-rw-r--r-- | udev/udev-node.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/udev/udev-node.c b/udev/udev-node.c index 4492c2e393..34de268464 100644 --- a/udev/udev-node.c +++ b/udev/udev-node.c @@ -396,6 +396,8 @@ int udev_node_remove(struct udev_device *dev) struct udev_list_entry *list_entry; const char *devnode; struct stat stats; + struct udev_device *dev_check; + char filename[UTIL_PATH_SIZE]; int err = 0; /* remove/update symlinks, remove symlinks from name index */ @@ -404,32 +406,36 @@ int udev_node_remove(struct udev_device *dev) devnode = udev_device_get_devnode(dev); if (devnode == NULL) - return 0; + goto out; + if (stat(devnode, &stats) != 0) { info(udev, "device node '%s' not found\n", devnode); - return 0; + goto out; } + if (stats.st_rdev != udev_device_get_devnum(dev)) { info(udev, "device node '%s' points to a different device, skip removal\n", devnode); - return -1; + err = -1; + goto out; } - if (udev_device_get_ignore_remove(dev)) { - info(udev, "ignore_remove for '%s'\n", udev_device_get_devnode(dev)); - } else { - struct udev_device *dev_check; - - dev_check = udev_device_new_from_syspath(udev, udev_device_get_syspath(dev)); - if (dev_check != NULL && stats.st_rdev == udev_device_get_devnum(dev_check)) { - /* do not remove device node if the same sys-device is re-created in the meantime */ - info(udev, "keeping device node of existing device'%s'\n", devnode); - } else { - info(udev, "removing device node '%s'\n", devnode); - err = util_unlink_secure(udev, devnode); - } + dev_check = udev_device_new_from_syspath(udev, udev_device_get_syspath(dev)); + if (dev_check != NULL) { + /* do not remove device node if the same sys-device is re-created in the meantime */ + info(udev, "keeping device node of existing device'%s'\n", devnode); udev_device_unref(dev_check); + goto out; + } + + util_strscpyl(filename, sizeof(filename), LIBEXECDIR "/devices", &devnode[strlen(udev_get_dev_path(udev))], NULL); + if (stat(filename, &stats) == 0 || stats.st_rdev == udev_device_get_devnum(dev)) { + info(udev, "static device entry found '%s', skip removal\n", devnode); + goto out; } + info(udev, "removing device node '%s'\n", devnode); + err = util_unlink_secure(udev, devnode); util_delete_path(udev, devnode); +out: return err; } |