Commit 1b9fb31f authored Jan 13, 2014 by Wolfram Sang Committed by Greg Kroah-Hartman Jan 13, 2014

usb: core: check for valid id_table when using the RefId feature



When implementing the RefId feature, it was missed that id_tables can be
NULL under special circumstances. Bail out in that case.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent f563926f

drivers/usb/core/driver.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -73,6 +73,9 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
		if (fields > 4) {
		const struct usb_device_id *id = id_table;

		if (!id)
		return -ENODEV;

		for (; id->match_flags; id++)
		if (id->idVendor == refVendor && id->idProduct == refProduct)
		break;