[PATCH v2 2/2] blk-sysfs: return EINVAL when user modify nr_request less than BLKDEV_MIN_RQ

[weiping zhang <zhangweiping@xxxxxxxxxxxxxxx>]

Signed-off-by: weiping zhang <zhangweiping@xxxxxxxxxxxxxxx>
---
 block/blk-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index b8362c0..03a6e19 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -75,7 +75,7 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count)
 		return ret;
 
 	if (nr < BLKDEV_MIN_RQ)
-		nr = BLKDEV_MIN_RQ;
+		return -EINVAL;
 
 	if (q->request_fn)
 		err = blk_update_nr_requests(q, nr);
-- 
2.9.4