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virtio_blk: Use kmalloc_array() in init_vq()

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Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Markus Elfring 2016-09-13 11:32:22 +02:00 committed by Michael S. Tsirkin
parent 3dae2c6152
commit 668866b6e8
1 changed files with 4 additions and 4 deletions
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8
drivers/block/virtio_blk.c
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@ -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;