On Tue, Jan 07, 2014 at 05:44:26PM -0800, David Cohen wrote: > From: jianqian <jianqiang.tang@xxxxxxxxx> > > There is a possible kernel panic faced on xhci_suspend(). > Due to kernel modified the hub autosupend_delay to 0s, after usb1 root > hub finishes initialization, it will trigger runtime_suspend and then > it will trigger xhci runtime suspend. But at that time, if > xhci->shared_hcd is still doing initialization, it is possible to face > null pointer kernel panic in xhci_suspend() function. > > This patch checks if xhci->shared_hcd is null to avoid panic. That sounds like this is a race that should be fixed properly, not just papered over, right? thanks, greg k-h -- 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
