when suspend, it need check 'udev->actconfig'. so when process failure, also need check it. Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> --- drivers/usb/core/driver.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index eb1d00a..1a50003 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1253,10 +1253,12 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) /* If the suspend failed, resume interfaces that did get suspended */ if (status != 0) { - msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); - while (++i < n) { - intf = udev->actconfig->interface[i]; - usb_resume_interface(udev, intf, msg, 0); + if (udev->actconfig) { + msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); + while (++i < n) { + intf = udev->actconfig->interface[i]; + usb_resume_interface(udev, intf, msg, 0); + } } /* If the suspend succeeded then prevent any more URB submissions -- 1.7.7.6 -- 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