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@xxxxxxxxx> --- drivers/usb/wusbcore/mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c index 4474126..3f485df 100644 --- a/drivers/usb/wusbcore/mmc.c +++ b/drivers/usb/wusbcore/mmc.c @@ -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; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
