From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 7 Dec 2013 06:03:00 +0000 (+0800)
Subject: mfd: sta2x11-mfd: Fix return value check in sta2x11_mfd_platform_probe()
X-Git-Tag: next-20131210~38^2~3
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1cf1df1659027433040f1bfc94612a73d49feea0;p=karo-tx-linux.git

mfd: sta2x11-mfd: Fix return value check in sta2x11_mfd_platform_probe()

In case of error, the function devm_regmap_init_mmio() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---

diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index 53ab686c984f..0d42e40adb98 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -339,7 +339,7 @@ static int sta2x11_mfd_platform_probe(struct platform_device *dev,
 	regmap_config->cache_type = REGCACHE_NONE;
 	mfd->regmap[index] = devm_regmap_init_mmio(&dev->dev, mfd->regs[index],
 						   regmap_config);
-	WARN_ON(!mfd->regmap[index]);
+	WARN_ON(IS_ERR(mfd->regmap[index]));
 
 	return 0;
 }