Commit 37920a74 authored Mar 16, 2015 by Colin Ian King Committed by Marc Kleine-Budde Mar 22, 2015

can: gs_usb: check for kzalloc allocation failure



smatch detected the following issue:
drivers/net/can/usb/gs_usb.c:904 gs_usb_probe() error:
   potential null dereference 'dev'.  (kzalloc returns null)

Add a check for null return from kzalloc and return -ENOMEM

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

parent 7e184c28

drivers/net/can/usb/gs_usb.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -901,6 +901,8 @@ static int gs_usb_probe(struct usb_interface intf, const struct usb_device_id
		}

		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
		if (!dev)
		return -ENOMEM;
		init_usb_anchor(&dev->rx_submitted);

		atomic_set(&dev->active_channels, 0);