The first argument to WARN() is supposed to be a condition.  The
original code will just print the mdname() instead of the full warning
message.

Fixes: c84a1372df92 ("md/raid0: avoid RAID0 data corruption due to layout 
confusion.")
Signed-off-by: Dan Carpenter <[email protected]>
---
 drivers/md/raid0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index f61693e59684..3956ea502f97 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -615,7 +615,7 @@ static bool raid0_make_request(struct mddev *mddev, struct 
bio *bio)
                tmp_dev = map_sector(mddev, zone, sector, &sector);
                break;
        default:
-               WARN("md/raid0:%s: Invalid layout\n", mdname(mddev));
+               WARN(1, "md/raid0:%s: Invalid layout\n", mdname(mddev));
                bio_io_error(bio);
                return true;
        }
-- 
2.20.1

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