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rpmsg: qcom_smd: Correct return value for O_NONBLOCK

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commit 1d74e7ed5dc1903ac081574a9b6aa94e7ba4ad45 upstream.

qcom_smd_send() should return -EAGAIN for non-blocking channels with
insufficient space, so that we can propagate this event to user space.

Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bjorn Andersson 2016-12-01 16:59:55 -08:00 committed by Greg Kroah-Hartman
parent 1d8286ccbc
commit 17df3e74fb
1 changed files with 1 additions and 1 deletions
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2
drivers/rpmsg/qcom_smd.c
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@ -739,7 +739,7 @@ static int __qcom_smd_send(struct qcom_smd_channel *channel, const void *data,
while (qcom_smd_get_tx_avail(channel) < tlen) {
if (!wait) {
ret = -ENOMEM;
ret = -EAGAIN;
goto out;
}