wil6210: fix subtle race in wil_tx_vring

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Finish all SW context modifications prior to notifying hardware

It used to be race condition: if HW finish Tx and issue Tx completion IRQ very fast,
prior to SW context update in wil_tx_vring, Tx completion will mis-handle descriptor, as
SW part will have no skb pointer stored.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Vladimir Kondratiev 2013-07-11 18:03:41 +03:00 • committed by John W. Linville

parent f88f113a54

commit 6cdadd4dc7

1 changed files with 6 additions and 5 deletions

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drivers/net/wireless/ath/wil6210/txrx.c

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