Otherwise, the gpiolib autorequest feature will produce a WARN_ON():
WARNING: at drivers/gpio/gpiolib.c:101 0x8020ec6c()
autorequest GPIO-215
[...]
CC: stable@xxxxxxxxxx
Signed-off-by: Florian Fainelli <florian@xxxxxxxxxxx>
---
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index 63df28c..16086f8 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -214,6 +214,11 @@ static int __devinit mtx1_wdt_probe(struct platform_device *pdev)
int ret;
mtx1_wdt_device.gpio = pdev->resource[0].start;
+ ret = gpio_request(mtx1_wdt_device.gpio, "mtx1-wdt");
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to request gpio");
+ return ret;
+ }
spin_lock_init(&mtx1_wdt_device.lock);
init_completion(&mtx1_wdt_device.stop);
--
1.7.4.1
