linux-kernel - [PATCH] scsi: virtio_scsi: remove unnecessary condition check

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1594305992-8458-1-git-send-email-xianting_tian@126.com>
Date:   Thu,  9 Jul 2020 10:46:32 -0400
From:   Xianting Tian <xianting_tian@....com>
To:     mst@...hat.com, jasowang@...hat.com, pbonzini@...hat.com,
        stefanha@...hat.com, jejb@...ux.ibm.com, martin.petersen@...cle.com
Cc:     virtualization@...ts.linux-foundation.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: virtio_scsi: remove unnecessary condition check

kmem_cache_destroy can correctly handle null pointer parameter,
so there is no need to check if the parameter is null before
calling kmem_cache_destroy.

Signed-off-by: Xianting Tian <xianting_tian@....com>
---
 drivers/scsi/virtio_scsi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index bfec84a..5bc288f 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -1007,10 +1007,8 @@ static int __init init(void)
 		mempool_destroy(virtscsi_cmd_pool);
 		virtscsi_cmd_pool = NULL;
 	}
-	if (virtscsi_cmd_cache) {
-		kmem_cache_destroy(virtscsi_cmd_cache);
-		virtscsi_cmd_cache = NULL;
-	}
+	kmem_cache_destroy(virtscsi_cmd_cache);
+	virtscsi_cmd_cache = NULL;
 	return ret;
 }
 
-- 
1.8.3.1