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

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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>

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Bob Copeland 2009-01-10 14:42:54 -05:00 • committed by John W. Linville

parent 138ab2e44e

commit b6ea03562f

1 changed files with 53 additions and 32 deletions

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85

drivers/net/wireless/ath5k/base.c

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