4.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matthias Schiffer <mschiffer@xxxxxxxxxxxxxxxxxxxx>
commit 91851cc7a939039bd401adb6ca3da4402bec1d0c upstream.
Commit b2d70d4944c1 ("ath9k: make GPIO API to support both of WMAC and
SOC") refactored ath9k_hw_gpio_get() to support both WMAC and SOC GPIOs,
changing the return on success from 1 to BIT(gpio). This broke some callers
like ath_is_rfkill_set(). This doesn't fix any known bug in mainline at the
moment, but should be fixed anyway.
Instead of fixing all callers, change ath9k_hw_gpio_get() back to only
return 0 or 1.
Fixes: b2d70d4944c1 ("ath9k: make GPIO API to support both of WMAC and SOC")
Signed-off-by: Matthias Schiffer <mschiffer@xxxxxxxxxxxxxxxxxxxx>
[kvalo@xxxxxxxxxxxxxxxx: mention that doesn't fix any known bug]
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/hw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2792,7 +2792,7 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah,
WARN_ON(1);
}
- return val;
+ return !!val;
}
EXPORT_SYMBOL(ath9k_hw_gpio_get);
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