[PATCH] drivers cris: return on NULL dev_alloc_skb()

If the next descriptor array entry cannot be allocated by dev_alloc_skb(),
return immediately so it is not dereferenced later.  We cannot register the
device with a partial descriptor list.

Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: David Rientjes <rientjes@cs.washington.edu>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
David Rientjes 2006-11-08 19:49:15 -08:00 committed by Jeff Garzik
parent ace48ffb5d
commit 92b1f90563

View file

@ -509,6 +509,8 @@ etrax_ethernet_init(void)
* does not share cacheline with any other data (to avoid cache bug)
*/
RxDescList[i].skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
if (!RxDescList[i].skb)
return -ENOMEM;
RxDescList[i].descr.ctrl = 0;
RxDescList[i].descr.sw_len = MAX_MEDIA_DATA_SIZE;
RxDescList[i].descr.next = virt_to_phys(&RxDescList[i + 1]);