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linux-3.8: backport a leds-gpio.c crash fix (fixes #13721) 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36968
lede-17.01
Felix Fietkau 2013-06-18 22:23:38 +00:00
parent bfab82392a
commit 2a5e1910d5
1 changed files with 25 additions and 0 deletions
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25
target/linux/generic/patches-3.8/040-backport_led_gpio_request_fix.patch Normal file
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@ -0,0 +1,25 @@
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -107,6 +107,10 @@ static int create_gpio_led(const struct
return 0;
}
+ ret = devm_gpio_request(parent, template->gpio, template->name);
+ if (ret < 0)
+ return ret;
+
led_dat->cdev.name = template->name;
led_dat->cdev.default_trigger = template->default_trigger;
led_dat->gpio = template->gpio;
@@ -126,10 +130,7 @@ static int create_gpio_led(const struct
if (!template->retain_state_suspended)
led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
- ret = devm_gpio_request_one(parent, template->gpio,
- (led_dat->active_low ^ state) ?
- GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
- template->name);
+ ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
if (ret < 0)
return ret;