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

Signed-off-by: Xianting Tian <redacted>
---
 drivers/scsi/virtio_scsi.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index bfec84a..54ac83e 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c

@@ -1003,14 +1003,10 @@ static int __init init(void)
 	return 0;
 
 error:
-	if (virtscsi_cmd_pool) {
-		mempool_destroy(virtscsi_cmd_pool);
-		virtscsi_cmd_pool = NULL;
-	}
-	if (virtscsi_cmd_cache) {
-		kmem_cache_destroy(virtscsi_cmd_cache);
-		virtscsi_cmd_cache = NULL;
-	}
+	mempool_destroy(virtscsi_cmd_pool);
+	virtscsi_cmd_pool = NULL;
+	kmem_cache_destroy(virtscsi_cmd_cache);
+	virtscsi_cmd_cache = NULL;
 	return ret;
 }