2.6.37-stable review patch. If anyone has any objections, please let us know.
------------------ From: Paul Zimmerman <[email protected]> commit 68e41c5d032668e2905404afbef75bc58be179d6 upstream. Change the BUGs in xhci_find_new_dequeue_state() to WARN_ONs, to avoid bringing down the box if one of them is hit This patch should be queued for stable kernels back to 2.6.31. Signed-off-by: Paul Zimmerman <[email protected]> Signed-off-by: Sarah Sharp <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/host/xhci-ring.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -479,8 +479,11 @@ void xhci_find_new_dequeue_state(struct state->new_deq_seg = find_trb_seg(cur_td->start_seg, dev->eps[ep_index].stopped_trb, &state->new_cycle_state); - if (!state->new_deq_seg) - BUG(); + if (!state->new_deq_seg) { + WARN_ON(1); + return; + } + /* Dig out the cycle state saved by the xHC during the stop ep cmd */ xhci_dbg(xhci, "Finding endpoint context\n"); ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); @@ -491,8 +494,10 @@ void xhci_find_new_dequeue_state(struct state->new_deq_seg = find_trb_seg(state->new_deq_seg, state->new_deq_ptr, &state->new_cycle_state); - if (!state->new_deq_seg) - BUG(); + if (!state->new_deq_seg) { + WARN_ON(1); + return; + } trb = &state->new_deq_ptr->generic; if ((trb->field[3] & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK) && _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
