tree 1fa0d8df1c011ae6ab693bcd4db6bc14a936a68a
parent 138ab2e44e99a9544aad60cf137b8ac1f54131c5
author Bob Copeland <me@bobcopeland.com> 1231616574 -0500
committer John W. Linville <linville@tuxdriver.com> 1233262822 -0500

ath5k: fix bf->skb==NULL panic in ath5k_tasklet_rx

Under memory pressure, we may not be able to allocate a new skb for
new packets.  If the allocation fails, ath5k_tasklet_rx will exit but
will leave a buffer in the list with a NULL skb, eventually triggering
a BUG_ON.

Extract the skb allocation from ath5k_rxbuf_setup() and change the
tasklet to allocate the next skb before accepting a packet.

Changes-licensed-under: 3-Clause-BSD

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>