linux/drivers/usb/roles
Wei Yongjun 548f4726a1 usb: roles: Fix potential NULL dereference in intel_xhci_usb_probe()
platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.

This is detected by Coccinelle semantic patch.

@@
expression pdev, res, n, t, e, e1, e2;
@@

res = platform_get_resource(pdev, t, n);
+ if (!res)
+   return -EINVAL;
... when != res == NULL
e = devm_ioremap_nocache(e1, res->start, e2);

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:49:42 +02:00
..
Kconfig
Makefile
intel-xhci-usb-role-switch.c usb: roles: Fix potential NULL dereference in intel_xhci_usb_probe() 2018-04-22 15:49:42 +02:00