From 7e8fbc673938278ec7165b99b76227d7cc2ab012 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Wed, 17 Apr 2013 13:38:13 -0300 Subject: [PATCH 105/203] mtd: nand: pxa3xx: Check for clk_prepare_enable() return value clk_prepare_enable() can fail due to unknown reason. Add a check for this and return the error code if it fails. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/pxa3xx_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1072,7 +1072,9 @@ static int alloc_nand_resource(struct pl dev_err(&pdev->dev, "failed to get nand clock\n"); return PTR_ERR(info->clk); } - clk_prepare_enable(info->clk); + ret = clk_prepare_enable(info->clk); + if (ret < 0) + return ret; /* * This is a dirty hack to make this driver work from devicetree