can: fix handling of unmodifiable configuration options fix
authorOliver Hartkopp <socketcan@hartkopp.net>
Tue, 21 Jun 2016 10:14:07 +0000 (12:14 +0200)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Thu, 23 Jun 2016 08:58:16 +0000 (10:58 +0200)
commitbce271f255dae8335dc4d2ee2c4531e09cc67f5a
treecef6df6dafbd828be610e723b056c740dbf07079
parentacd43fe85b2d1dbad55ce211b8817e6d6687246f
can: fix handling of unmodifiable configuration options fix

With upstream commit bb208f144cf3f59 (can: fix handling of unmodifiable
configuration options) a new can_validate() function was introduced.

When invoking 'ip link set can0 type can' without any configuration data
can_validate() tries to validate the content without taking into account that
there's totally no content. This patch adds a check for missing content.

Reported-by: ajneu <ajneu1@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/dev.c