linux-kernel - [PATCH] mfd: tc6393xb: Handle return value of clk_prepare

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Message-Id: <f7574163bae6d67e932fd73306a3f53700bdf2d8.1496297744.git.arvind.yadav.cs@gmail.com>
Date:   Thu,  1 Jun 2017 12:44:50 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     lee.jones@...aro.org, linus.walleij@...aro.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...il.com>
---
 drivers/mfd/tc6393xb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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)
-- 
1.9.1