diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-01-04 19:26:58 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-01-23 18:37:17 +0300 |
| commit | 3e68f331c8c759c0daa31cc92c3449b23119a215 (patch) | |
| tree | 30db4a9ea80e00dde8f4ff07ac67046e6a491bbd /drivers/mtd/nand/onenand | |
| parent | 109cf81fb573c1b685282a35e427e76f35870628 (diff) | |
| download | linux-3e68f331c8c759c0daa31cc92c3449b23119a215.tar.xz | |
mtd: onenand: Check for error irq
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
Diffstat (limited to 'drivers/mtd/nand/onenand')
| -rw-r--r-- | drivers/mtd/nand/onenand/generic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mtd/nand/onenand/generic.c b/drivers/mtd/nand/onenand/generic.c index 8b6f4da5d720..a4b8b65fe15f 100644 --- a/drivers/mtd/nand/onenand/generic.c +++ b/drivers/mtd/nand/onenand/generic.c @@ -53,7 +53,12 @@ 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; |