From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 19 Oct 2023 17:34:55 +0000 (+0300)
Subject: gpiolib: acpi: Add missing memset(0) to acpi_get_gpiod_from_data()
X-Git-Tag: nvme-6.7-2023-11-22~199^2
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=479ac419206b5fe4ce4e40de61ac3210a36711aa;p=nvme.git

gpiolib: acpi: Add missing memset(0) to acpi_get_gpiod_from_data()

When refactoring the acpi_get_gpiod_from_data() the change missed
cleaning up the variable on stack. Add missing memset().

Reported-by: Ferry Toth <ftoth@exalondelft.nl>
Fixes: 16ba046e86e9 ("gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index fbda452fb4d6..51e41676de0b 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -951,6 +951,7 @@ static struct gpio_desc *acpi_get_gpiod_from_data(struct fwnode_handle *fwnode,
 	if (!propname)
 		return ERR_PTR(-EINVAL);
 
+	memset(&lookup, 0, sizeof(lookup));
 	lookup.index = index;
 
 	ret = acpi_gpio_property_lookup(fwnode, propname, index, &lookup);