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: 7bd1d4093c ("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
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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
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
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