ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL

On the error condition clk_get() returns ERR_PTR().

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/plat-samsung/include/plat/watchdog-reset.h b/arch/arm/plat-samsung/include/plat/watchdog-reset.h
index f19aff1..bc4db9b 100644 (file)
--- a/arch/arm/plat-samsung/include/plat/watchdog-reset.h
+++ b/arch/arm/plat-samsung/include/plat/watchdog-reset.h
@@ -25,7 +25,7 @@ static inline void arch_wdt_reset(void)
 
        __raw_writel(0, S3C2410_WTCON);   /* disable watchdog, to be safe  */
 
-       if (s3c2410_wdtclk)
+       if (!IS_ERR(s3c2410_wdtclk))
                clk_enable(s3c2410_wdtclk);
 
        /* put initial values into count and data */