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Filename Latest commit message Latest commit date
Torin Cooper-Bennun b7049b6156 can: tcan4x5x: tcan4x5x_init(): fix initialization - clear MRAM before entering Normal Mode
commit 2712625200ed69c642b9abc3a403830c4643364c upstream.

This patch prevents a potentially destructive race condition. The
device is fully operational on the bus after entering Normal Mode, so
zeroing the MRAM after entering this mode may lead to loss of
information, e.g. new received messages.

This patch fixes the problem by first initializing the MRAM, then
bringing the device into Normale Mode.

Fixes: 5443c226ba ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Link: https://lore.kernel.org/r/20210226163440.313628-1-torin@maxiluxsystems.com
Suggested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Torin Cooper-Bennun <torin@maxiluxsystems.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:03:32 +01:00
arch powerpc/pseries: Don't enforce MSI affinity with kdump 2021-03-17 17:03:30 +01:00
block blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-04 10:26:40 +01:00
certs
crypto crypto: tcrypt - avoid signed overflow in byte count 2021-03-07 12:20:46 +01:00
Documentation sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-03-07 12:20:48 +01:00
drivers can: tcan4x5x: tcan4x5x_init(): fix initialization - clear MRAM before entering Normal Mode 2021-03-17 17:03:32 +01:00
fs btrfs: fix warning when creating a directory with smack enabled 2021-03-09 11:09:37 +01:00
include can: skb: can_skb_set_owner(): fix ref counting if socket was closed before setting skb ownership 2021-03-17 17:03:31 +01:00
init
ipc
kernel sched/features: Fix hrtick reprogramming 2021-03-07 12:20:47 +01:00
lib
LICENSES
mm swap: fix swapfile read/write offset 2021-03-07 12:20:49 +01:00
net net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:03:31 +01:00
samples
scripts ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-03-09 11:09:39 +01:00
security smackfs: restrict bytes count in smackfs write functions 2021-03-07 12:20:42 +01:00
sound ASoC: Intel: bytcr_rt5640: Add quirk for ARCHOS Cesium 140 2021-03-11 14:06:50 +01:00
tools usbip: tools: fix build error for multiple definition 2021-03-09 11:09:38 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.105 2021-03-11 14:06:51 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.