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mtd: rawnand: fsmc: handle clk prepare error in fsmc_nand_resume() 

[ Upstream commit a5a88125d0 ]

In fsmc_nand_resume(), the return value of clk_prepare_enable() should be
checked since it might fail.

Fixes: e25da1c07d ("mtd: fsmc_nand: Add clk_{un}prepare() support")
Signed-off-by: Yi Yang <yiyang13@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230817115839.10192-1-yiyang13@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yi Yang 2023-08-17 19:58:39 +08:00 committed by Greg Kroah-Hartman
parent eaf4c78982
commit 222b85e748
1 changed files with 6 additions and 1 deletions
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7
drivers/mtd/nand/raw/fsmc_nand.c
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@ -1202,9 +1202,14 @@ static int fsmc_nand_suspend(struct device *dev)
static int fsmc_nand_resume(struct device *dev) static int fsmc_nand_resume(struct device *dev)
{ {
struct fsmc_nand_data *host = dev_get_drvdata(dev); struct fsmc_nand_data *host = dev_get_drvdata(dev);
int ret;
if (host) { if (host) {
clk_prepare_enable(host->clk); ret = clk_prepare_enable(host->clk);
if (ret) {
dev_err(dev, "failed to enable clk\n");
return ret;
}
if (host->dev_timings) if (host->dev_timings)
fsmc_nand_setup(host, host->dev_timings); fsmc_nand_setup(host, host->dev_timings);
nand_reset(&host->nand, 0); nand_reset(&host->nand, 0);