linux-kernel - [PATCH] usb: u132-hcd: fix resource leak

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Message-Id: <1553587942-14037-1-git-send-email-mojha@codeaurora.org>
Date:   Tue, 26 Mar 2019 13:42:22 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     kjlu@....edu, pakki001@....edu, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        colin.king@...onical.com
Cc:     Mukesh Ojha <mojha@...eaurora.org>
Subject: [PATCH] usb: u132-hcd: fix resource leak

if platform_driver_register fails, cleanup the allocated resource
gracefully.

Signed-off-by: Mukesh Ojha <mojha@...eaurora.org>
---
This patch is dependent on "usb: u132-hcd: fix potential NULL pointer dereference"
by Kangjie Lu, otherwise it may give merge conflict.

 drivers/usb/host/u132-hcd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 934584f..1d8d578 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -3204,6 +3204,9 @@ static int __init u132_hcd_init(void)
 	printk(KERN_INFO "driver %s\n", hcd_name);
 	workqueue = create_singlethread_workqueue("u132");
 	retval = platform_driver_register(&u132_platform_driver);
+	if (retval)
+		destroy_workqueue(workqueue);
+
 	return retval;
 }
 
-- 
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