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.anders...@linaro.org> --- drivers/rpmsg/qcom_smd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 7552ef0e82ba..beaef5dd973e 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -742,7 +742,7 @@ 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; } -- 2.5.0