vol_id: use long options

[elogind.git] / udev_node.c

diff --git a/udev_node.c b/udev_node.c
index 526d7135169d35f3b58af446eaf8c7648a398494..b1bbda8369c3e264e86b583015d122e1299f96fe 100644 (file)
--- a/udev_node.c
+++ b/udev_node.c
@@ -44,7 +44,7 @@ int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t m
        else
                mode |= S_IFCHR;
 
-       if (stat(file, &stats) != 0)
+       if (lstat(file, &stats) != 0)
                goto create;
 
        /* preserve node with already correct numbers, to prevent changing the inode number */
@@ -153,7 +153,7 @@ static int update_link(struct udevice *udev, const char *name)
        count = udev_db_get_devices_by_name(name, &name_list);
        info("found %i devices with name '%s'", count, name);
 
-       /* if we don't have any reference, we can delete the link */
+       /* if we don't have a reference, delete it */
        if (count <= 0) {
                info("no reference left, remove '%s'", name);
                if (!udev->test_run) {
@@ -236,11 +236,10 @@ void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
        if (udev_old != NULL) {
                struct name_entry *link_loop;
                struct name_entry *link_old_loop;
-               struct name_entry *link_old_tmp_loop;
                int found;
 
                /* remove current symlinks from old list */
-               list_for_each_entry_safe(link_old_loop, link_old_tmp_loop, &udev_old->symlink_list, node) {
+               list_for_each_entry(link_old_loop, &udev_old->symlink_list, node) {
                        found = 0;
                        list_for_each_entry(link_loop, &udev->symlink_list, node) {
                                if (strcmp(link_old_loop->name, link_loop->name) == 0) {
@@ -255,6 +254,13 @@ void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
                                update_link(udev, link_old_loop->name);
                        }
                }
+
+               /*
+                * if the node name has changed, delete the node,
+                * or possibly restore a symlink of another device
+                */
+               if (strcmp(udev->name, udev_old->name) != 0)
+                       update_link(udev, udev_old->name);
        }
 }
 
@@ -342,7 +348,7 @@ int udev_node_remove(struct udevice *udev)
        char filename[PATH_SIZE];
        char partitionname[PATH_SIZE];
        struct stat stats;
-       int retval;
+       int retval = 0;
        int num;
 
        strlcpy(filename, udev_root, sizeof(filename));
@@ -358,7 +364,8 @@ int udev_node_remove(struct udevice *udev)
        }
 
        info("removing device node '%s'", filename);
-       retval = unlink_secure(filename);
+       if (!udev->test_run)
+               retval = unlink_secure(filename);
        if (retval)
                return retval;
 
@@ -373,7 +380,8 @@ int udev_node_remove(struct udevice *udev)
                for (i = 1; i <= num; i++) {
                        snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
                        partitionname[sizeof(partitionname)-1] = '\0';
-                       unlink_secure(partitionname);
+                       if (!udev->test_run)
+                               unlink_secure(partitionname);
                }
        }
        delete_path(filename);