[PATCH 3.16.y-ckt 119/135] USB: adutux: NULL dereferences on disconnect

From: Luis Henriques
Date: Fri Feb 06 2015 - 07:09:11 EST


3.16.7-ckt6 -stable review patch. If anyone has any objections, please let me know.

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

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit fc625960edecfb57e62c2975d1f155155e28e6ba upstream.

Both "dev->udev" and "interface->dev" are NULL. These printks are not
very interesting so I just deleted them.

Fixes: 03270634e242 ('USB: Add ADU support for Ontrak ADU devices')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/usb/misc/adutux.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 493c7f268b6f..3071c0ef909b 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -814,15 +814,10 @@ static void adu_disconnect(struct usb_interface *interface)
usb_set_intfdata(interface, NULL);

/* if the device is not opened, then we clean up right now */
- dev_dbg(&dev->udev->dev, "%s : open count %d\n",
- __func__, dev->open_count);
if (!dev->open_count)
adu_delete(dev);

mutex_unlock(&adutux_mutex);
-
- dev_info(&interface->dev, "ADU device adutux%d now disconnected\n",
- (minor - ADU_MINOR_BASE));
}

/* usb specific object needed to register this driver with the usb subsystem */
--
2.1.4

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