block: Silence spurious compiler warnings

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 6 insertions, 0 deletions

diff --git a/block/blk-merge.c b/block/blk-merge.c
index 05c17be0eea4..0b097f6b1778 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -89,6 +89,8 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
         struct bio_vec end_bv, nxt_bv;
         struct bvec_iter iter;
 
+        uninitialized_var(end_bv);
+
         if (!blk_queue_cluster(q))
                 return 0;
 
@@ -173,6 +175,8 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq,
         struct scatterlist *sg;
         int nsegs, cluster;
 
+        uninitialized_var(bvprv);
+
         nsegs = 0;
         cluster = blk_queue_cluster(q);
 
@@ -235,6 +239,8 @@ int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
         int nsegs, cluster;
         struct bvec_iter iter;
 
+        uninitialized_var(bvprv);
+
         nsegs = 0;
         cluster = blk_queue_cluster(q);