linux-kernel - [PATCH 3.18 38/38] USB: serial: garmin_gps: fix memory leak on probe errors

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Date:   Sun, 19 Nov 2017 15:29:54 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: [PATCH 3.18 38/38] USB: serial: garmin_gps: fix memory leak on probe errors

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

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

commit 74d471b598444b7f2d964930f7234779c80960a0 upstream.

Make sure to free the port private data before returning after a failed
probe attempt.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/serial/garmin_gps.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1414,6 +1414,12 @@ static int garmin_port_probe(struct usb_
 	usb_set_serial_port_data(port, garmin_data_p);
 
 	status = garmin_init_session(port);
+	if (status)
+		goto err_free;
+
+	return 0;
+err_free:
+	kfree(garmin_data_p);
 
 	return status;
 }