Commit 193e3320 authored Jan 11, 2016 by Tony Truong Committed by Gerrit - the friendly Code Review server Feb 23, 2016

mhi: core: Fix race condition on poll_inbound



Fix race condition in mhi_poll_inbound which could leave the
bounce buffer list and TRE list out of sync.

Change-Id: I76c7de75256b59f8a0dff2a85af733c441761385
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
Signed-off-by: Tony Truong <truong@codeaurora.org>

parent 72d34170

drivers/platform/msm/mhi/mhi_main.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1499,7 +1499,7 @@ int mhi_poll_inbound(struct mhi_client_handle *client_handle,
		bb_ctxt = &mhi_dev_ctxt->chan_bb_list[chan];

		mutex_lock(chan_mutex);
		if (local_chan_ctxt->rp != local_chan_ctxt->ack_rp) {
		if (bb_ctxt->rp != bb_ctxt->ack_rp) {
		pending_trb = (struct mhi_tx_pkt *)(local_chan_ctxt->ack_rp);
		result->flags = pending_trb->info;
		bb = bb_ctxt->ack_rp;