| To: | Wim Van Sebroeck <wim@iguana.be>, linux-mips@linux-mips.org, linux-watchdog@vger.kernel.org, Manuel Lauss <manuel.lauss@googlemail.com> |
|---|---|
| Subject: | [PATCH 2/3] WATCHDOG: mtx1-wdt: request gpio before using it |
| From: | Florian Fainelli <florian@openwrt.org> |
| Date: | Thu, 2 Jun 2011 14:54:20 +0200 |
| Cc: | stable@kernel.org |
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Otherwise, the gpiolib autorequest feature will produce a WARN_ON():
WARNING: at drivers/gpio/gpiolib.c:101 0x8020ec6c()
autorequest GPIO-215
[...]
CC: stable@kernel.org
Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
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
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