Once ah has been freed, it may not be accessed. Set ATH_STAT_INVALID
bit to make the interrupt handler return IRQ_NONE without accessing ah.
This fixes oops on unload with CONFIG_DEBUG_SHIRQ enabled.
Signed-off-by: Pavel Roskin <proski@xxxxxxx>
---
drivers/net/wireless/ath5k/hw.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index 677600b..ff579a2 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -458,6 +458,8 @@ void ath5k_hw_detach(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
+ __set_bit(ATH_STAT_INVALID, ah->ah_sc->status);
+
if (ah->ah_rf_banks != NULL)
kfree(ah->ah_rf_banks);
--
Regards,
Pavel Roskin
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