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usb: misc: brcmstb-usb-pinmap: check return value after calling platform_get_resource()

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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 <stable@vger.kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210605080914.2057758-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yang Yingliang 2021-06-05 16:09:14 +08:00 committed by Greg Kroah-Hartman
parent d00889080a
commit fbf649cd6d
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/misc/brcmstb-usb-pinmap.c
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@ -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) +