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 <nborisov@xxxxxxxx> --- 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
