Commit 2a229919 authored by Lu Baolu's avatar Lu Baolu Committed by Jiri Slaby

usb: xhci: fix wild pointers in xhci_mem_cleanup

commit 71504062 upstream.

This patch fixes some wild pointers produced by xhci_mem_cleanup.
These wild pointers will cause system crash if xhci_mem_cleanup()
is called twice.
Reported-and-tested-by: default avatarPengcheng Li <lpc.li@hisilicon.com>
Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
parent 3223f444
......@@ -1785,6 +1785,12 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
kfree(xhci->rh_bw);
kfree(xhci->ext_caps);
xhci->usb2_ports = NULL;
xhci->usb3_ports = NULL;
xhci->port_array = NULL;
xhci->rh_bw = NULL;
xhci->ext_caps = NULL;
xhci->page_size = 0;
xhci->page_shift = 0;
xhci->bus_state[0].bus_suspended = 0;
......
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