This is a note to let you know that I've just added the patch titled
ath9k: fix ath9k_hw_gpio_get() to return 0 or 1 on success
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-success.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 91851cc7a939039bd401adb6ca3da4402bec1d0c Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@xxxxxxxxxxxxxxxxxxxx>
Date: Tue, 15 Nov 2016 18:47:21 +0100
Subject: ath9k: fix ath9k_hw_gpio_get() to return 0 or 1 on success
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);
Patches currently in stable-queue which might be from mschiffer@xxxxxxxxxxxxxxxxxxxx are
queue-4.9/ath9k-fix-ath9k_hw_gpio_get-to-return-0-or-1-on-success.patch
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