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patch "usb: misc: brcmstb-usb-pinmap: check return value after calling" added to usb-linus

PATCH [email protected] 1 participant 1 message Jun 9, 2021

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This is a note to let you know that I've just added the patch titled

usb: misc: brcmstb-usb-pinmap: check return value after calling

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From fbf649cd6d64d40c03c5397ecd6b1ae922ba7afc Mon Sep 17 00:00:00 2001
From: Yang Yingliang <[email protected]>
Date: Sat, 5 Jun 2021 16:09:14 +0800
Subject: usb: misc: brcmstb-usb-pinmap: check return value after calling
platform_get_resource()

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")
Cc stable <[email protected]>
---
 drivers/usb/misc/brcmstb-usb-pinmap.c | 2 ++
 1 file changed, 2 insertions(+)
drivers/usb/misc/brcmstb-usb-pinmap.c +2 -0
index b3cfe8666ea7..336653091e3b 100644
@@ -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) +
Signature · 1 line
2.32.0