From: Xu Wang <vulab@iscas.ac.cn>
Date: Fri, 19 Mar 2021 08:11:13 +0000 (+0000)
Subject: dm thin: remove needless request_queue NULL pointer check
X-Git-Tag: accepted/tizen/unified/20230118.172025~7316^2~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=695902bb2e17baf10a5a312ef048b71f738ddbe8;p=platform%2Fkernel%2Flinux-rpi.git

dm thin: remove needless request_queue NULL pointer check

Since commit ff9ea323816d ("block, bdi: an active gendisk always has a
request_queue associated with it") the request_queue pointer returned
from bdev_get_queue() shall never be NULL.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index fff4c50..985baee 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2816,7 +2816,7 @@ static bool data_dev_supports_discard(struct pool_c *pt)
 {
 	struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
 
-	return q && blk_queue_discard(q);
+	return blk_queue_discard(q);
 }
 
 static bool is_factor(sector_t block_size, uint32_t n)