[PATCH] ARM: spear: fix return value check in spear_setup_of_timer()

[Wei Yongjun]

From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

In case of error, the function clk_get_sys() 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@xxxxxxxxxxxxxxxxx>
---
 arch/arm/mach-spear/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index d449673..3263a34 100644
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -222,7 +222,7 @@ void __init spear_setup_of_timer(void)
 	}
 
 	gpt_clk = clk_get_sys("gpt0", NULL);
-	if (!gpt_clk) {
+	if (IS_ERR(gpt_clk)) {
 		pr_err("%s:couldn't get clk for gpt\n", __func__);
 		goto err_iomap;
 	}

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