btrfs: enhance btrfs_find_device_by_user_input() to check device path

The operation of device replace and device delete follows same steps upto
some depth with in btrfs kernel, however they don't share codes. This
enhancement will help replace and delete to share codes.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 7ad8ae994ca0..fdd2880707df 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -320,10 +320,6 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
                 return -EINVAL;
         }
 
-        if ((args->start.srcdevid == 0 && args->start.srcdev_name[0] == '\0') ||
-            args->start.tgtdev_name[0] == '\0')
-                return -EINVAL;
-
         /* the disk copy procedure reuses the scrub code */
         mutex_lock(&fs_info->volume_mutex);
         ret = btrfs_find_device_by_user_input(root, args->start.srcdevid,