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| author | Colin Ian King <colin.king@canonical.com> | 2021-04-06 21:45:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-09 17:02:26 +0300 |
| commit | 9c2076090c2815fe7c49676df68dde7e60a9b9fc (patch) | |
| tree | 9d120282c0fa7f2e313a8f409ebcb1970457d37a /drivers/usb/gadget/udc/r8a66597-udc.c | |
| parent | 782de5e7190de0a773417708e17d9461d9109bf9 (diff) | |
| download | linux-9c2076090c2815fe7c49676df68dde7e60a9b9fc.tar.xz | |
usb: gadget: r8a66597: Add missing null check on return from platform_get_resource
The call to platform_get_resource can potentially return a NULL pointer
on failure, so add this check and return -EINVAL if it fails.
Fixes: c41442474a26 ("usb: gadget: R8A66597 peripheral controller support.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Dereference null return")
Link: https://lore.kernel.org/r/20210406184510.433497-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/udc/r8a66597-udc.c')
| -rw-r--r-- | drivers/usb/gadget/udc/r8a66597-udc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index 896c1a016d55..65cae4883454 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -1849,6 +1849,8 @@ static int r8a66597_probe(struct platform_device *pdev) return PTR_ERR(reg); ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!ires) + return -EINVAL; irq = ires->start; irq_trigger = ires->flags & IRQF_TRIGGER_MASK; |