From 4b83c52a21cf5a7421b7c28bebf8ff28ba96ceb9 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Thu, 1 Sep 2016 15:28:08 -0700 Subject: 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 --- include/linux/rpmsg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 71b16d3..452d393 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -80,7 +80,7 @@ struct rpmsg_device { const struct rpmsg_device_ops *ops; }; -typedef void (*rpmsg_rx_cb_t)(struct rpmsg_device *, void *, int, void *, u32); +typedef int (*rpmsg_rx_cb_t)(struct rpmsg_device *, void *, int, void *, u32); /** * struct rpmsg_endpoint - binds a local rpmsg address to its user @@ -129,7 +129,7 @@ struct rpmsg_driver { const struct rpmsg_device_id *id_table; int (*probe)(struct rpmsg_device *dev); void (*remove)(struct rpmsg_device *dev); - void (*callback)(struct rpmsg_device *, void *, int, void *, u32); + int (*callback)(struct rpmsg_device *, void *, int, void *, u32); }; int register_rpmsg_device(struct rpmsg_device *dev); -- cgit v1.1