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rpmsg: smd: Reduce restrictions when finding channel

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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: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Bjorn Andersson 2016-10-07 21:23:11 -07:00
parent 1001354ca3
commit 66dca399e6
1 changed files with 4 additions and 11 deletions
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15
drivers/rpmsg/qcom_smd.c
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@ -820,20 +820,13 @@ 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;
ret = channel;
break;
if (!strcmp(channel->name, name)) {
ret = channel;
break;
}
}
spin_unlock_irqrestore(&edge->channels_lock, flags);