From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Thu, 1 Jun 2017 10:58:15 +0000 (+0530)
Subject: mtd: nand: orion: Handle return value of clk_prepare_enable
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3762a33b007b63e058eb600eccf0bcd097d386f5;p=openwrt%2Fstaging%2Fblogic.git

mtd: nand: orion: 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: Boris Brezillon <boris.brezillon@free-electrons.com>
---

diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f8e463a97b9e..209170ed2b76 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -166,7 +166,11 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 		}
 	}
 
-	clk_prepare_enable(info->clk);
+	ret = clk_prepare_enable(info->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to prepare clock!\n");
+		return ret;
+	}
 
 	ret = nand_scan(mtd, 1);
 	if (ret)