mtd: nand: orion: Handle return value of clk_prepare_enable

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=3762a33b007b63e058eb600eccf0bcd097d386f5
Commit:     3762a33b007b63e058eb600eccf0bcd097d386f5
Parent:     d45e5316e6a5071dbfe44bae04a89a3ba75e1ea9
Author:     Arvind Yadav <arvind.yadav.cs at gmail.com>
AuthorDate: Thu Jun 1 16:28:15 2017 +0530
Committer:  Boris Brezillon <boris.brezillon at free-electrons.com>
CommitDate: Sat Jun 10 12:09:27 2017 +0200

    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 at gmail.com>
    Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
 drivers/mtd/nand/orion_nand.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f8e463a..209170e 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)