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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-06-18 22:23:38 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-06-18 22:23:38 +0000
commitecf32cbad995e590156945d859948bf4ad510e08 (patch)
treebaab34a603b601e0a94edb92390db6893e4daeb1 /target/linux
parent0ebed0739d0daca7b5f9e1bfa9146e846c9b1ba6 (diff)
linux-3.8: backport a leds-gpio.c crash fix (fixes #13721)
Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36968 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/generic/patches-3.8/040-backport_led_gpio_request_fix.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.8/040-backport_led_gpio_request_fix.patch b/target/linux/generic/patches-3.8/040-backport_led_gpio_request_fix.patch
new file mode 100644
index 0000000000..b00d813840
--- /dev/null
+++ b/target/linux/generic/patches-3.8/040-backport_led_gpio_request_fix.patch
@@ -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;
+