Update Linux to v5.4.148
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz
Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index fbf6b1a..558cd90 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -457,6 +457,8 @@
long gpio;
struct gpio_desc *desc;
int status;
+ struct gpio_chip *gc;
+ int offset;
status = kstrtol(buf, 0, &gpio);
if (status < 0)
@@ -468,6 +470,12 @@
pr_warn("%s: invalid GPIO %ld\n", __func__, gpio);
return -EINVAL;
}
+ gc = desc->gdev->chip;
+ offset = gpio_chip_hwgpio(desc);
+ if (!gpiochip_line_is_valid(gc, offset)) {
+ pr_warn("%s: GPIO %ld masked\n", __func__, gpio);
+ return -EINVAL;
+ }
/* No extra locking here; FLAG_SYSFS just signifies that the
* request and export were done by on behalf of userspace, so