diff mbox series

[V5,5/5] rpmsg: glink: unregister rpmsg device during endpoint destroy

Message ID 0101016e9292cd9d-ebab0468-29d4-4c8f-b2f8-58f2a4a5e65e-000000@us-west-2.amazonses.com (mailing list archive)
State New, archived
Headers show
Series Add chrdev and name query support for GLINK | expand

Commit Message

Arun Kumar Neelakantam Nov. 22, 2019, 10:05 a.m. UTC 
Rpmsg device unregister is not happening if channel close is triggered
from local side and causing re-registration of device failures.

Unregister rpmsg device for local close in endpoint destroy path.

Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
---
 drivers/rpmsg/qcom_glink_native.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 3732fc6..0ff4cbe 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1187,6 +1187,7 @@  static void qcom_glink_destroy_ept(struct rpmsg_endpoint *ept)
 {
 	struct glink_channel *channel = to_glink_channel(ept);
 	struct qcom_glink *glink = channel->glink;
+	struct rpmsg_channel_info chinfo;
 	unsigned long flags;
 
 	spin_lock_irqsave(&channel->recv_lock, flags);
@@ -1194,6 +1195,13 @@  static void qcom_glink_destroy_ept(struct rpmsg_endpoint *ept)
 	spin_unlock_irqrestore(&channel->recv_lock, flags);
 
 	/* Decouple the potential rpdev from the channel */
+	if (channel->rpdev) {
+		strncpy(chinfo.name, channel->name, sizeof(chinfo.name));
+		chinfo.src = RPMSG_ADDR_ANY;
+		chinfo.dst = RPMSG_ADDR_ANY;
+
+		rpmsg_unregister_device(glink->dev, &chinfo);
+	}
 	channel->rpdev = NULL;
 
 	qcom_glink_send_close_req(glink, channel);
@@ -1459,6 +1467,7 @@  static void qcom_glink_rx_close(struct qcom_glink *glink, unsigned int rcid)
 
 		rpmsg_unregister_device(glink->dev, &chinfo);
 	}
+	channel->rpdev = NULL;
 
 	qcom_glink_send_close_ack(glink, channel->rcid);