From 4d26f012ab591d7671237a6b5e990cbbfd50b0b8 Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Tue, 1 Aug 2017 17:10:11 +0530 Subject: [PATCH] mtd: nand: lpc32xx_mlc: 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 Signed-off-by: Boris Brezillon --- drivers/mtd/nand/lpc32xx_mlc.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 846a66c1b133..91ee369681f0 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -705,7 +705,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) res = -ENOENT; goto err_exit1; } - clk_prepare_enable(host->clk); + res = clk_prepare_enable(host->clk); + if (res) + goto err_exit1; nand_chip->cmd_ctrl = lpc32xx_nand_cmd_ctrl; nand_chip->dev_ready = lpc32xx_nand_device_ready; @@ -846,9 +848,12 @@ static int lpc32xx_nand_remove(struct platform_device *pdev) static int lpc32xx_nand_resume(struct platform_device *pdev) { struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); + int ret; /* Re-enable NAND clock */ - clk_prepare_enable(host->clk); + ret = clk_prepare_enable(host->clk); + if (ret) + return ret; /* Fresh init of NAND controller */ lpc32xx_nand_setup(host); -- 2.20.1