From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Thu, 1 Jun 2017 07:14:50 +0000 (+0530)
Subject: mfd: tc6393xb: Handle return value of clk_prepare_enable
X-Git-Tag: v4.14-rc1~554^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b6678050a1d9ce971bbb343607d3920efe7131a7;p=platform%2Fkernel%2Flinux-rpi.git

mfd: tc6393xb: Handle return value of clk_prepare_enable

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---

diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index d16e71b..0c9f039 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -797,7 +797,9 @@ static int tc6393xb_resume(struct platform_device *dev)
 	int ret;
 	int i;
 
-	clk_prepare_enable(tc6393xb->clk);
+	ret = clk_prepare_enable(tc6393xb->clk);
+	if (ret)
+		return ret;
 
 	ret = tcpd->resume(dev);
 	if (ret)