virtio_blk: Delete an unnecessary initialisation in init_vq()

[cascardo/linux.git] / drivers / block / virtio_blk.c

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 93b1aaa..5545a67 100644 (file)
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -376,7 +376,7 @@ static void virtblk_config_changed(struct virtio_device *vdev)
 
 static int init_vq(struct virtio_blk *vblk)
 {
-       int err = 0;
+       int err;
        int i;
        vq_callback_t **callbacks;
        const char **names;
@@ -390,13 +390,13 @@ static int init_vq(struct virtio_blk *vblk)
        if (err)
                num_vqs = 1;
 
-       vblk->vqs = kmalloc(sizeof(*vblk->vqs) * num_vqs, GFP_KERNEL);
+       vblk->vqs = kmalloc_array(num_vqs, sizeof(*vblk->vqs), GFP_KERNEL);
        if (!vblk->vqs)
                return -ENOMEM;
 
-       names = kmalloc(sizeof(*names) * num_vqs, GFP_KERNEL);
-       callbacks = kmalloc(sizeof(*callbacks) * num_vqs, GFP_KERNEL);
-       vqs = kmalloc(sizeof(*vqs) * num_vqs, GFP_KERNEL);
+       names = kmalloc_array(num_vqs, sizeof(*names), GFP_KERNEL);
+       callbacks = kmalloc_array(num_vqs, sizeof(*callbacks), GFP_KERNEL);
+       vqs = kmalloc_array(num_vqs, sizeof(*vqs), GFP_KERNEL);
        if (!names || !callbacks || !vqs) {
                err = -ENOMEM;
                goto out;
@@ -542,7 +542,6 @@ static int virtblk_init_request(void *data, struct request *rq,
 
 static struct blk_mq_ops virtio_mq_ops = {
        .queue_rq       = virtio_queue_rq,
-       .map_queue      = blk_mq_map_queue,
        .complete       = virtblk_request_done,
        .init_request   = virtblk_init_request,
 };