Commit ce3c8692 authored by Nicolas Kaiser's avatar Nicolas Kaiser Committed by David S. Miller
Browse files

drivers/net/macvtap: fix error check 



'len' is unsigned of type size_t and can't be negative.

Signed-off-by: default avatarNicolas Kaiser <nikai@nikai.net>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b3ca9b02

drivers/net/macvtap.c

+2 −1
Original line number Diff line number Diff line
@@ -528,8 +528,9 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, 
		vnet_hdr_len = q->vnet_hdr_sz;



		err = -EINVAL;

		if ((len -= vnet_hdr_len) < 0)

		if (len < vnet_hdr_len)

			goto err;

		len -= vnet_hdr_len;



		err = memcpy_fromiovecend((void *)&vnet_hdr, iv, 0,

					   sizeof(vnet_hdr));