Commit 66dca399 authored by Bjorn Andersson's avatar Bjorn Andersson
Browse files

rpmsg: smd: Reduce restrictions when finding channel 



SMD channels are created by the remotes in "opening" state, but
sometimes as we close and try to reopen them they linger in closing
state.

Following the search for a matching channel the create_ept() will verify
that the channel is in a suitable state, so we can lax the restrictions
of the search function to work around above difference in behaviour.

Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 1001354c

drivers/rpmsg/qcom_smd.c

+4 −11
Original line number Diff line number Diff line
@@ -820,21 +820,14 @@ qcom_smd_find_channel(struct qcom_smd_edge *edge, const char *name) 
	struct qcom_smd_channel *channel;

	struct qcom_smd_channel *ret = NULL;

	unsigned long flags;

	unsigned state;



	spin_lock_irqsave(&edge->channels_lock, flags);

	list_for_each_entry(channel, &edge->channels, list) {

		if (strcmp(channel->name, name))

			continue;



		state = GET_RX_CHANNEL_INFO(channel, state);

		if (state != SMD_CHANNEL_OPENING &&

		    state != SMD_CHANNEL_OPENED)

			continue;



		if (!strcmp(channel->name, name)) {

			ret = channel;

			break;

		}

	}

	spin_unlock_irqrestore(&edge->channels_lock, flags);



	return ret;