diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2021-06-05 16:09:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-09 11:04:27 +0200 |
| commit | fbf649cd6d64d40c03c5397ecd6b1ae922ba7afc (patch) | |
| tree | dbe10d7d52269103be7b808d87a3f01c5718189c | |
| parent | d00889080ab60051627dab1d85831cd9db750e2a (diff) | |
| download | lwn-fbf649cd6d64d40c03c5397ecd6b1ae922ba7afc.tar.gz lwn-fbf649cd6d64d40c03c5397ecd6b1ae922ba7afc.zip | |
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 <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>
| -rw-r--r-- | drivers/usb/misc/brcmstb-usb-pinmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
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) + |