linux-kernel - [PATCH 3.10 047/250] USB: serial: garmin_gps: fix memory leak on failed URB submit

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Message-Id: <1496876436-32402-48-git-send-email-w@1wt.eu>
Date:   Thu,  8 Jun 2017 00:57:13 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     Johan Hovold <johan@...nel.org>, Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 047/250] USB: serial: garmin_gps: fix memory leak on failed URB submit

From: Johan Hovold <johan@...nel.org>

commit c4ac4496e835b78a45dfbf74f6173932217e4116 upstream.

Make sure to free the URB transfer buffer in case submission fails (e.g.
due to a disconnect).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/usb/serial/garmin_gps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index b110c57..ea9c4f4 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1049,6 +1049,7 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 				__func__, status);
 		count = status;
+		kfree(buffer);
 	}
 
 	/* we are done with this urb, so let the host driver
-- 
2.8.0.rc2.1.gbe9624a