Add sanity checks for cport_quiesce and cport_clear before invoking the
callbacks as these function pointers are not required during the host
device registration. This follows the logic implemented elsewhere for
various other function pointers.
Signed-off-by: Jason Hrycay <jhrycay@xxxxxxxxx>
---
drivers/staging/greybus/connection.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/staging/greybus/connection.c b/drivers/staging/greybus/connection.c
index 833f83b..aa040b1 100644
--- a/drivers/staging/greybus/connection.c
+++ b/drivers/staging/greybus/connection.c
@@ -358,6 +358,9 @@ static int gb_connection_hd_cport_quiesce(struct gb_connection *connection)
size_t peer_space;
int ret;
+ if (!hd->driver->cport_quiesce)
+ return 0;
+
peer_space = sizeof(struct gb_operation_msg_hdr) +
sizeof(struct gb_cport_shutdown_request);
@@ -381,6 +384,9 @@ static int gb_connection_hd_cport_clear(struct gb_connection *connection)
struct gb_host_device *hd = connection->hd;
int ret;
+ if (!hd->driver->cport_clear)
+ return 0;
+
ret = hd->driver->cport_clear(hd, connection->hd_cport_id);
if (ret) {
dev_err(&hd->dev, "%s: failed to clear host cport: %d\n",
--
2.10.0
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