diff options
Diffstat (limited to 'drivers/rpmsg/rpmsg_core.c')
| -rw-r--r-- | drivers/rpmsg/rpmsg_core.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c index 1cfb775e8e82..600f5f9f7431 100644 --- a/drivers/rpmsg/rpmsg_core.c +++ b/drivers/rpmsg/rpmsg_core.c @@ -72,7 +72,7 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev, struct rpmsg_channel_info chinfo) { if (WARN_ON(!rpdev)) - return ERR_PTR(-EINVAL); + return NULL; return rpdev->ops->create_ept(rpdev, cb, priv, chinfo); } @@ -240,6 +240,26 @@ int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst) EXPORT_SYMBOL(rpmsg_trysendto); /** + * rpmsg_poll() - poll the endpoint's send buffers + * @ept: the rpmsg endpoint + * @filp: file for poll_wait() + * @wait: poll_table for poll_wait() + * + * Returns mask representing the current state of the endpoint's send buffers + */ +unsigned int rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp, + poll_table *wait) +{ + if (WARN_ON(!ept)) + return 0; + if (!ept->ops->poll) + return 0; + + return ept->ops->poll(ept, filp, wait); +} +EXPORT_SYMBOL(rpmsg_poll); + +/** * rpmsg_send_offchannel() - send a message using explicit src/dst addresses * @ept: the rpmsg endpoint * @src: source address |