[PATCH 5.15 049/913] greybus: svc: fix an error handling bug in gb_svc_hello()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit 5f8583a3b7552092582a92e7bbd2153319929ad7 upstream.

Cleanup if gb_svc_queue_deferred_request() fails.

Link: https://lore.kernel.org/r/20220202072016.GA6748@kili
Fixes: ee2f2074fdb2 ("greybus: svc: reconfig APBridgeA-Switch link to handle required load")
Cc: stable@xxxxxxxxxxxxxxx      # 4.9
[johan: fix commit summary prefix and rename label ]
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220202113347.1288-2-johan@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/greybus/svc.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/drivers/greybus/svc.c
+++ b/drivers/greybus/svc.c
@@ -866,8 +866,14 @@ static int gb_svc_hello(struct gb_operat
 
 	gb_svc_debugfs_init(svc);
 
-	return gb_svc_queue_deferred_request(op);
+	ret = gb_svc_queue_deferred_request(op);
+	if (ret)
+		goto err_remove_debugfs;
 
+	return 0;
+
+err_remove_debugfs:
+	gb_svc_debugfs_exit(svc);
 err_unregister_device:
 	gb_svc_watchdog_destroy(svc);
 	device_del(&svc->dev);