Re: [PATCH] usb:xhci fix panic in xhci_free_virt_devices_depth_first

2017-11-06 Thread Chen Yu
On 2017/11/6 15:59, Greg KH wrote: >> >> diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c >> index 2a82c927ded2..295789d993b0 100644 >> --- a/drivers/usb/host/xhci-mem.c >> +++ b/drivers/usb/host/xhci-mem.c >> @@ -947,6 +947,11 @@ void xhci_free_virt_devices_depth_first(stru

Re: [PATCH] usb:xhci fix panic in xhci_free_virt_devices_depth_first

2017-11-06 Thread Greg KH
On Mon, Nov 06, 2017 at 11:28:55AM +0800, Yu Chen wrote: > From: Yu Chen > > Check vdev->real_port 0 to avoid panic > [9.261347] [] > xhci_free_virt_devices_depth_first+0x58/0x108 > [9.261352] [] xhci_mem_cleanup+0x1bc/0x570 > [9.261355] [] xhci_stop+0x140/0x1c8 > [9.261365] [] u

[PATCH] usb:xhci fix panic in xhci_free_virt_devices_depth_first

2017-11-05 Thread Yu Chen
From: Yu Chen Check vdev->real_port 0 to avoid panic [9.261347] [] xhci_free_virt_devices_depth_first+0x58/0x108 [9.261352] [] xhci_mem_cleanup+0x1bc/0x570 [9.261355] [] xhci_stop+0x140/0x1c8 [9.261365] [] usb_remove_hcd+0xfc/0x1d0 [9.261369] [] xhci_plat_remove+0x6c/0xa8 [