[PATCH] block: return NULL in blk_alloc_queue() on error

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This patch fixes follwoing warning:

block/blk-core.c: In function ‘blk_alloc_queue’:
block/blk-core.c:558:10: warning: returning ‘int’ from a function with return type ‘struct request_queue *’ makes pointer from integer without a cast [-Wint-conversion]
   return -EINVAL;

Fixes: 3d745ea5b095a ("block: simplify queue allocation")
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>
---
 block/blk-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 18b8c09d093e..7e4a1da0715e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -555,7 +555,7 @@ struct request_queue *blk_alloc_queue(make_request_fn make_request, int node_id)
 	struct request_queue *q;
 
 	if (WARN_ON_ONCE(!make_request))
-		return -EINVAL;
+		return NULL;
 
 	q = __blk_alloc_queue(node_id);
 	if (!q)
-- 
2.22.1




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