[PATCH -next] usb: misc: brcmstb-usb-pinmap: check return value after calling platform_get_resource()
From: Yang Yingliang <hidden>
Date: 2021-06-05 08:05:01
Also in:
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Subsystem:
broadcom brcmstb usb pin map driver, the rest, usb subsystem · Maintainers:
Al Cooper, Linus Torvalds, Greg Kroah-Hartman
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Fixes: 517c4c44b323 ("usb: Add driver to allow any GPIO to be used for 7211 USB signals")
Signed-off-by: Yang Yingliang <redacted>
---
drivers/usb/misc/brcmstb-usb-pinmap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/misc/brcmstb-usb-pinmap.c b/drivers/usb/misc/brcmstb-usb-pinmap.c
index b3cfe8666ea7..336653091e3b 100644
--- a/drivers/usb/misc/brcmstb-usb-pinmap.c
+++ b/drivers/usb/misc/brcmstb-usb-pinmap.c@@ -263,6 +263,8 @@ static int __init brcmstb_usb_pinmap_probe(struct platform_device *pdev) return -EINVAL; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) + return -EINVAL; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata) +
--
2.25.1