korina: add error-handling to korina_alloc_ring
authorPhil Sutter <n0-1@freewrt.org>
Wed, 12 Aug 2009 12:52:32 +0000 (12:52 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 13 Aug 2009 23:26:12 +0000 (16:26 -0700)
commit7010837a44813711b66d9e82e90f9641464e515d
tree6d6aab73dd5af93db3f3ef1fa69b5e95688171c9
parentf16aea4d201018a124f3c1efd7f247fd3b11e4e1
korina: add error-handling to korina_alloc_ring

This also avoids a potential buffer overflow in case the very first
receive descriptor fails to allocate, as an index of -1 would be used
afterwards. Kudos to Roel Kluin for pointing this out and providing an
initial patch.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/korina.c