dm: small cleanup in dm_get_md()
authorMike Snitzer <snitzer@redhat.com>
Mon, 6 Nov 2017 21:40:10 +0000 (16:40 -0500)
committerMike Snitzer <snitzer@redhat.com>
Fri, 10 Nov 2017 20:44:57 +0000 (15:44 -0500)
Makes dm_get_md() and dm_get_from_kobject() have similar code.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm.c

index dcfa1a8..567b9ed 100644 (file)
@@ -2074,17 +2074,12 @@ struct mapped_device *dm_get_md(dev_t dev)
        spin_lock(&_minor_lock);
 
        md = idr_find(&_minor_idr, minor);
-       if (md) {
-               if ((md == MINOR_ALLOCED ||
-                    (MINOR(disk_devt(dm_disk(md))) != minor) ||
-                    dm_deleting_md(md) ||
-                    test_bit(DMF_FREEING, &md->flags))) {
-                       md = NULL;
-                       goto out;
-               }
-               dm_get(md);
+       if (!md || md == MINOR_ALLOCED || (MINOR(disk_devt(dm_disk(md))) != minor) ||
+           test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) {
+               md = NULL;
+               goto out;
        }
-
+       dm_get(md);
 out:
        spin_unlock(&_minor_lock);