linux-kernel - [PATCH][next] loop: Fix missing max_active argument in alloc

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Date:   Thu, 18 Mar 2021 15:16:26 +0000
From:   Colin King <colin.king@...onical.com>
To:     Jens Axboe <axboe@...nel.dk>,
        Dan Schatzberg <schatzberg.dan@...il.com>,
        linux-block@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] loop: Fix missing max_active argument in alloc_workqueue call

From: Colin Ian King <colin.king@...onical.com>

The 3rd argument to alloc_workqueue should be the max_active count,
however currently it is the lo->lo_number that is intended for the
loop%d number. Fix this by adding in the missing max_active count.

Addresses-Coverity: ("Missing argument to printf")
Fixes: 08ad7f822739 ("loop: Use worker per cgroup instead of kworker")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/block/loop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f2f9e4127847..ee2a6c1bc093 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1192,7 +1192,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	lo->workqueue = alloc_workqueue("loop%d",
 					WQ_UNBOUND | WQ_FREEZABLE |
 					WQ_MEM_RECLAIM,
-					lo->lo_number);
+					1, lo->lo_number);
 	if (!lo->workqueue) {
 		error = -ENOMEM;
 		goto out_unlock;
-- 
2.30.2