Alexander Shishkin bf7cbaae08 stm class: Prevent division by zero ...

Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM
device that supplies zero mmio channel size, will trigger a division by
zero bug in the kernel.

Prevent this by disallowing channel widths other than 1 for such devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices")
CC: stable@vger.kernel.org # v4.4+

2019-02-21 17:44:18 +02:00

..

console.c

stm class: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate

2018-03-28 18:47:17 +03:00

core.c

stm class: Prevent division by zero

2019-02-21 17:44:18 +02:00

dummy_stm.c

stm class: Make dummy's master/channel ranges configurable

2018-03-28 18:47:18 +03:00

ftrace.c

coresight: Moving framework and drivers to SPDX identifier

2018-05-14 16:19:59 +02:00

heartbeat.c

stm class: heartbeat: Fix whitespace

2018-10-11 12:12:55 +02:00

Kconfig

stm class: Add MIPI SyS-T protocol support

2018-10-11 12:12:54 +02:00

Makefile

stm class: Add MIPI SyS-T protocol support

2018-10-11 12:12:54 +02:00

p_basic.c

stm class: Factor out default framing protocol

2018-10-11 12:12:54 +02:00

p_sys-t.c

stm class: p_sys-t: Add support for CLOCKSYNC packets

2018-10-11 12:12:54 +02:00

policy.c

stm class: Fix a module refcount leak in policy creation error path

2018-12-19 20:21:06 +01:00

stm.h

stm class: Add a helper for writing data packets

2018-10-11 12:12:54 +02:00