From: Peter Korsgaard <peter.korsgaard@barco.com>
Date: Mon, 26 Apr 2010 08:05:06 +0000 (+0200)
Subject: USB: g_hid: unregister platform driver on probe/usb_composite_register errors
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=da01c7a49bfc94dbfa66af5ca5e1063b10bc6a10;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

USB: g_hid: unregister platform driver on probe/usb_composite_register errors

Otherwise reloads will fail.

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c
index b77e97754b4..775722686ed 100644
--- a/drivers/usb/gadget/hid.c
+++ b/drivers/usb/gadget/hid.c
@@ -275,8 +275,18 @@ MODULE_LICENSE("GPL");
 
 static int __init hidg_init(void)
 {
-	platform_driver_probe(&hidg_plat_driver, hidg_plat_driver_probe);
-	return usb_composite_register(&hidg_driver);
+	int status;
+
+	status = platform_driver_probe(&hidg_plat_driver,
+				hidg_plat_driver_probe);
+	if (status < 0)
+		return status;
+
+	status = usb_composite_register(&hidg_driver);
+	if (status < 0)
+		platform_driver_unregister(&hidg_plat_driver);
+
+	return status;
 }
 module_init(hidg_init);