xhci: Fix null pointer dereference if xhci initialization fails
authorMathias Nyman <mathias.nyman@linux.intel.com>
Thu, 11 Sep 2014 10:55:48 +0000 (13:55 +0300)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 5 Nov 2014 20:27:42 +0000 (20:27 +0000)
commitcd2b663832bf1eeb2f5d15e092546ae0c0d58135
tree340e611d1ebd4705a4559c47c359ac9fe4658ce9
parent2a163ac939fd6a7c8f96bb577a45e3f5d97a382d
xhci: Fix null pointer dereference if xhci initialization fails

commit c207e7c50f31113c24a9f536fcab1e8a256985d7 upstream.

If xhci initialization fails before the roothub bandwidth
domains (xhci->rh_bw[i]) are allocated it will oops when
trying to access rh_bw members in xhci_mem_cleanup().

Reported-by: Manuel Reimer <manuel.reimer@gmx.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/host/xhci-mem.c