ath5k: fix bf->skb==NULL panic in ath5k_tasklet_rx
commitb6ea03562f04382776ad825624daefe27f5d3f9c
authorBob Copeland <me@bobcopeland.com>
Sat, 10 Jan 2009 19:42:54 +0000 (10 14:42 -0500)
committerJohn W. Linville <linville@tuxdriver.com>
Thu, 29 Jan 2009 21:00:22 +0000 (29 16:00 -0500)
tree1fa0d8df1c011ae6ab693bcd4db6bc14a936a68a
parent138ab2e44e99a9544aad60cf137b8ac1f54131c5
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>
drivers/net/wireless/ath5k/base.c