[PATCH 3/8] btrfs: Remove impossible WARN_ON

[Nikolay Borisov]

This WARN_ON can never trigger because src_device cannot be null.
btrfs_find_device_by_devspec always returns either an error or a valid
pointer to the device. Just remove it.

Signed-off-by: Nikolay Borisov <nbori...@suse.com>
---
 fs/btrfs/dev-replace.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index ac6600a00188..7db9057d3d3c 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -447,7 +447,6 @@ static int btrfs_dev_replace_start(struct btrfs_fs_info 
*fs_info,
        }
 
        dev_replace->cont_reading_from_srcdev_mode = read_src;
-       WARN_ON(!src_device);
        dev_replace->srcdev = src_device;
        dev_replace->tgtdev = tgt_device;
 
-- 
2.17.1