commit f50e4a8494a74bdbc0f86f1430a4cca2a4f28799
author Pavel Roskin <proski@gnu.org> Wed Mar 12 16:13:31 2008 -0400
committer John W. Linville <linville@tuxdriver.com> Thu Mar 13 15:57:25 2008 -0400
tree 8e8198f8eec78a56deb4e699d6107d9a0a58abec
parent 5abdc49d6e521126ed4c15e913a5c30f6dd95e6b

ath5k: disable irq handling in ath5k_hw_detach()

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@gnu.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath5k/hw.c

diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index c2de2d9..0175743 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -427,6 +427,8 @@
 {
 	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);