path: root/samples/rpmsg
diff options
authorBjorn Andersson <bjorn.andersson@linaro.org>2016-09-01 15:28:08 -0700
committerBjorn Andersson <bjorn.andersson@linaro.org>2016-09-08 22:15:25 -0700
commit4b83c52a21cf5a7421b7c28bebf8ff28ba96ceb9 (patch)
tree750fbb5bb454ea00c2ea96859e08134cb50457bf /samples/rpmsg
parente88dae5da46d3989fd6a83dd9f6806777b20d1ae (diff)
rpmsg: Allow callback to return errors
Some rpmsg backends support holding on to and redelivering messages upon failed handling of them, so provide a way for the callback to report and error and allow the backends to handle this. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'samples/rpmsg')
1 files changed, 4 insertions, 2 deletions
diff --git a/samples/rpmsg/rpmsg_client_sample.c b/samples/rpmsg/rpmsg_client_sample.c
index 4fcd7ee13fb9..f161dfd3e70a 100644
--- a/samples/rpmsg/rpmsg_client_sample.c
+++ b/samples/rpmsg/rpmsg_client_sample.c
@@ -28,7 +28,7 @@ struct instance_data {
int rx_count;
-static void rpmsg_sample_cb(struct rpmsg_device *rpdev, void *data, int len,
+static int rpmsg_sample_cb(struct rpmsg_device *rpdev, void *data, int len,
void *priv, u32 src)
int ret;
@@ -43,13 +43,15 @@ static void rpmsg_sample_cb(struct rpmsg_device *rpdev, void *data, int len,
/* samples should not live forever */
if (idata->rx_count >= MSG_LIMIT) {
dev_info(&rpdev->dev, "goodbye!\n");
- return;
+ return 0;
/* send a new message now */
ret = rpmsg_send(rpdev->ept, MSG, strlen(MSG));
if (ret)
dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret);
+ return 0;
static int rpmsg_sample_probe(struct rpmsg_device *rpdev)