Patch "gpio: gpio-wcove: fix irq pending status bit width" has been added to the 4.9-stable tree

Patch "gpio: gpio-wcove: fix irq pending status bit width" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    gpio: gpio-wcove: fix irq pending status bit width

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:
     gpio-gpio-wcove-fix-irq-pending-status-bit-width.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@vger.kernel.org> know about it.


>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Fri, 14 Apr 2017 10:29:25 -0700
Subject: gpio: gpio-wcove: fix irq pending status bit width

From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>


[ Upstream commit 7c2d176fe3f8dce632b948f79c7e89916ffe2c70 ]

Whiskey cove PMIC has three GPIO banks with total number of 13 GPIO
pins. But when checking for the pending status, for_each_set_bit() uses
bit width of 7 and hence it only checks the status for first 7 GPIO pins
missing to check/clear the status of rest of the GPIO pins. This patch
fixes this issue.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-wcove.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpio/gpio-wcove.c
+++ b/drivers/gpio/gpio-wcove.c
@@ -318,7 +318,7 @@ static irqreturn_t wcove_gpio_irq_handle
 	while (pending) {
 		/* One iteration is for all pending bits */
 		for_each_set_bit(gpio, (const unsigned long *)&pending,
-						 GROUP0_NR_IRQS) {
+						 WCOVE_GPIO_NUM) {
 			offset = (gpio > GROUP0_NR_IRQS) ? 1 : 0;
 			mask = (offset == 1) ? BIT(gpio - GROUP0_NR_IRQS) :
 								BIT(gpio);


Patches currently in stable-queue which might be from sathyanarayanan.kuppuswamy@linux.intel.com are

queue-4.9/gpio-gpio-wcove-fix-gpio-irq-status-mask.patch
queue-4.9/gpio-gpio-wcove-fix-irq-pending-status-bit-width.patch