[PATCH] mm/swapfile: Remove needless request_queue NULL pointer check

[Xu Wang <vulab@xxxxxxxxxxx>]

The request_queue pointer returned from bdev_get_queue() shall
never be NULL, so the null check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@xxxxxxxxxxx>
---
 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 22d10f713848..42027d213fd2 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3118,7 +3118,7 @@ static bool swap_discardable(struct swap_info_struct *si)
 {
 	struct request_queue *q = bdev_get_queue(si->bdev);
 
-	if (!q || !blk_queue_discard(q))
+	if (!blk_queue_discard(q))
 		return false;
 
 	return true;
-- 
2.17.1