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Filename Latest commit message Latest commit date
Ruihong Luo d674cb90a9 serial: 8250_dw: Preserve original value of DLF register
commit 748c5ea8b8796ae8ee80b8d3a3d940570b588d59 upstream.

Preserve the original value of the Divisor Latch Fraction (DLF) register.
When the DLF register is modified without preservation, it can disrupt
the baudrate settings established by firmware or bootloader, leading to
data corruption and the generation of unreadable or distorted characters.

Fixes: 701c5e73b2 ("serial: 8250_dw: add fractional divisor support")
Cc: stable <stable@kernel.org>
Signed-off-by: Ruihong Luo <colorsu1922@gmail.com>
Link: https://lore.kernel.org/stable/20230713004235.35904-1-colorsu1922%40gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230713004235.35904-1-colorsu1922@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 11:53:50 +02:00
arch
block
certs
crypto
Documentation
drivers serial: 8250_dw: Preserve original value of DLF register 2023-08-11 11:53:50 +02:00
fs ext4: fix to check return value of freeze_bdev() in ext4_shutdown() 2023-08-11 11:53:47 +02:00
include block: Fix a source code comment in include/uapi/linux/blkzoned.h 2023-08-11 11:53:49 +02:00
init
ipc
kernel tracing: Fix warning in trace_buffered_event_disable() 2023-08-11 11:53:50 +02:00
lib
LICENSES
mm
net net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64 2023-08-11 11:53:48 +02:00
samples
scripts
security keys: Fix linking a duplicate key to a keyring's assoc_array 2023-08-11 11:53:47 +02:00
sound ASoC: fsl_spdif: Silence output on stop 2023-08-11 11:53:49 +02:00
tools
usr
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Makefile Linux 5.4.252 2023-08-08 19:56:37 +02:00
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.