Commit 9b19d40a authored by Florian Fainelli's avatar Florian Fainelli Committed by Wim Van Sebroeck

watchdog: mtx1-wdt: request gpio before using it

Otherwise, the gpiolib autorequest feature will produce a WARN_ON():

WARNING: at drivers/gpio/gpiolib.c:101 0x8020ec6c()
autorequest GPIO-215
[...]
Signed-off-by: default avatarFlorian Fainelli <florian@openwrt.org>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
parent 076bad7c
......@@ -214,6 +214,12 @@ static int __devinit mtx1_wdt_probe(struct platform_device *pdev)
int ret;
mtx1_wdt_device.gpio = pdev->resource[0].start;
ret = gpio_request_one(mtx1_wdt_device.gpio,
GPIOF_OUT_INIT_HIGH, "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);
......@@ -239,6 +245,8 @@ static int __devexit mtx1_wdt_remove(struct platform_device *pdev)
mtx1_wdt_device.queue = 0;
wait_for_completion(&mtx1_wdt_device.stop);
}
gpio_free(mtx1_wdt_device.gpio);
misc_deregister(&mtx1_wdt_misc);
return 0;
}
......
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