dm raid1: remove impossible mempool_alloc error test

mempool_alloc can't fail if __GFP_WAIT is specified, so the condition
that tests if read_record is non-NULL is always true.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index fd61f98ee1f6..b37467618b16 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1195,11 +1195,9 @@ static int mirror_map(struct dm_target *ti, struct bio *bio,
                 return -EIO;
 
         read_record = mempool_alloc(ms->read_record_pool, GFP_NOIO);
-        if (likely(read_record)) {
-                dm_bio_record(&read_record->details, bio);
-                map_context->ptr = read_record;
-                read_record->m = m;
-        }
+        dm_bio_record(&read_record->details, bio);
+        map_context->ptr = read_record;
+        read_record->m = m;
 
         map_bio(m, bio);