Commit 1cb027f2 authored by Colin Ian King's avatar Colin Ian King Committed by Marcel Holtmann
Browse files

Bluetooth: virtio_bt: add missing null pointer check on alloc_skb call return 



The call to alloc_skb with the GFP_KERNEL flag can return a null sk_buff
pointer, so add a null check to avoid any null pointer deference issues.

Addresses-Coverity: ("Dereference null return value")
Fixes: afd2daa2 ("Bluetooth: Add support for virtio transport driver")
Signed-off-by: default avatarColin Ian King <colin.king@canonical.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1c6ed31b

drivers/bluetooth/virtio_bt.c

+3 −0
Original line number Diff line number Diff line
@@ -34,6 +34,9 @@ static int virtbt_add_inbuf(struct virtio_bluetooth *vbt) 
	int err;



	skb = alloc_skb(1000, GFP_KERNEL);

	if (!skb)

		return -ENOMEM;



	sg_init_one(sg, skb->data, 1000);



	err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_KERNEL);