Commit bd130ada authored Apr 23, 2014 by Thomas Pugliese Committed by Greg Kroah-Hartman Apr 24, 2014

usb: wusbcore: fix panic in wusbhc_chid_set

If no valid CHID value has previously been set on an HWA, writing a
value of all zeros will cause a kernel panic in uwb_radio_stop because
wusbhc->uwb_rc has not been set. This patch skips the call to
uwb_radio_stop if wusbhc->uwb_rc has not been initialized.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7584f2eb

drivers/usb/wusbcore/mmc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -301,7 +301,7 @@ int wusbhc_chid_set(struct wusbhc wusbhc, const struct wusb_ckhdid chid)

		if (chid)
		result = uwb_radio_start(&wusbhc->pal);
		else
		else if (wusbhc->uwb_rc)
		uwb_radio_stop(&wusbhc->pal);

		return result;