[065/200] ath9k_hw: fix hardware deinit

Greg KH
2010-07-01T21:52:57Z

2.6.34-stable review patch. If anyone has any objections, please let me know.

------------------

From: Sujith <Sujith.Manoharan@atheros.com>

commit 736b3a27b3c50c4a23717b802240435a69e8d0ff upstream.

Without this you will get a panic if the device initialization
fails. Also, free ath_hw instance properly. ath9k_hw_deinit()
shouldn't do it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/net/wireless/ath/ath9k/hw.c | 4 +---
drivers/net/wireless/ath/ath9k/init.c | 3 +++
2 files changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1241,7 +1241,7 @@ void ath9k_hw_deinit(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);

- if (common->state <= ATH_HW_INITIALIZED)
+ if (common->state < ATH_HW_INITIALIZED)
goto free_hw;

if (!AR_SREV_9100(ah))
@@ -1252,8 +1252,6 @@ void ath9k_hw_deinit(struct ath_hw *ah)
free_hw:
if (!AR_SREV_9280_10_OR_LATER(ah))
ath9k_hw_rf_free_ext_banks(ah);
- kfree(ah);
- ah = NULL;
}
EXPORT_SYMBOL(ath9k_hw_deinit);

--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -760,6 +760,9 @@ static void ath9k_deinit_softc(struct at

tasklet_kill(&sc->intr_tq);
tasklet_kill(&sc->bcon_tasklet);
+
+ kfree(sc->sc_ah);
+ sc->sc_ah = NULL;
}

void ath9k_deinit_device(struct ath_softc *sc)