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mtd: rawnand: fsmc: handle clk prepare error in fsmc_nand_resume()
author
Yi Yang
<yiyang13@huawei.com>
Thu, 17 Aug 2023 11:58:39 +0000
(19:58 +0800)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Wed, 13 Sep 2023 07:42:58 +0000
(09:42 +0200)
[ Upstream commit
a5a88125d00612586e941ae13e7fcf36ba8f18a7
]
In fsmc_nand_resume(), the return value of clk_prepare_enable() should be
checked since it might fail.
Fixes:
e25da1c07dfb
("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>
drivers/mtd/nand/raw/fsmc_nand.c
patch
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diff --git
a/drivers/mtd/nand/raw/fsmc_nand.c
b/drivers/mtd/nand/raw/fsmc_nand.c
index
6b2bda8
..
17786e1
100644
(file)
--- a/
drivers/mtd/nand/raw/fsmc_nand.c
+++ b/
drivers/mtd/nand/raw/fsmc_nand.c
@@
-1202,9
+1202,14
@@
static int fsmc_nand_suspend(struct device *dev)
static int fsmc_nand_resume(struct device *dev)
{
struct fsmc_nand_data *host = dev_get_drvdata(dev);
+ int ret;
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)
fsmc_nand_setup(host, host->dev_timings);
nand_reset(&host->nand, 0);