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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-01-04 19:26:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-20 10:08:16 +0300 |
| commit | a94ef82db436612102475fa43edc31c20890a5af (patch) | |
| tree | fd2000ac94c8d134cdb4d60fe58d2bd93142385f /drivers | |
| parent | 9674267ad671c270bf7da597133320fd4c7379b1 (diff) | |
| download | linux-a94ef82db436612102475fa43edc31c20890a5af.tar.xz | |
mtd: onenand: Check for error irq
[ Upstream commit 3e68f331c8c759c0daa31cc92c3449b23119a215 ]
For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq() effectively
convert that into -EINVAL, even at probe time rather than later on.
So it might be better to check just now.
Fixes: 2c22120fbd01 ("MTD: OneNAND: interrupt based wait support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220104162658.1988142-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/onenand/generic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 125da34d8ff9..23a878e7974e 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -58,7 +58,12 @@ static int generic_onenand_probe(struct platform_device *pdev) } info->onenand.mmcontrol = pdata ? pdata->mmcontrol : NULL; - info->onenand.irq = platform_get_irq(pdev, 0); + + err = platform_get_irq(pdev, 0); + if (err < 0) + goto out_iounmap; + + info->onenand.irq = err; info->mtd.dev.parent = &pdev->dev; info->mtd.priv = &info->onenand; |