From: Yang Yingliang yangyingliang@huawei.com
commit fbf649cd6d64d40c03c5397ecd6b1ae922ba7afc upstream.
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 --- drivers/usb/misc/brcmstb-usb-pinmap.c | 2 ++ 1 file changed, 2 insertions(+)
--- 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_pro return -EINVAL;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) + return -EINVAL;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata) +