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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 <arvind.yadav.cs@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Arvind Yadav 2017-08-01 17:10:11 +05:30 committed by Boris Brezillon
parent 7c94128127
commit 4d26f012ab
1 changed files with 7 additions and 2 deletions
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9
drivers/mtd/nand/lpc32xx_mlc.c
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@ -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);