From: Johan Hovold <johan@hovoldconsulting.com>
Date: Tue, 13 Oct 2015 17:10:27 +0000 (+0200)
Subject: greybus: vibrator: add missing protocol-register error handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d4efa68803667ab9d3ff6786462d2702b89e58de;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

greybus: vibrator: add missing protocol-register error handling

Add missing error handling when registering the vibrator protocol during
module init.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---

diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c
index fd40cda565e4..2b8032653f55 100644
--- a/drivers/staging/greybus/vibrator.c
+++ b/drivers/staging/greybus/vibrator.c
@@ -171,7 +171,16 @@ static __init int protocol_init(void)
 	if (retval)
 		return retval;
 
-	return gb_protocol_register(&vibrator_protocol);
+	retval = gb_protocol_register(&vibrator_protocol);
+	if (retval)
+		goto err_class_unregister;
+
+	return 0;
+
+err_class_unregister:
+	class_unregister(&vibrator_class);
+
+	return retval;
 }
 module_init(protocol_init);