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Uwe Kleine-König 9eb0bd1eea serial: stm32: Ignore return value of uart_remove_one_port() in .remove() 
[ Upstream commit 6bd6cd29c9 ]

Returning early from stm32_usart_serial_remove() results in a resource
leak as several cleanup functions are not called. The driver core ignores
the return value and there is no possibility to clean up later.

uart_remove_one_port() only returns non-zero if there is some
inconsistency (i.e. stm32_usart_driver.state[port->line].uart_port == NULL).
This should never happen, and even if it does it's a bad idea to exit
early in the remove callback without cleaning up.

This prepares changing the prototype of struct platform_driver::remove to
return void. See commit 5c5a7680e6 ("platform: Provide a remove callback
that returns no value") for further details about this quest.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230512173810.131447-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-23 17:32:29 +02:00
arch Revert "[PATCH] uml: export symbols added by GCC hardened" 2023-08-23 17:32:29 +02:00
block
certs
crypto
Documentation iommu/amd: Introduce Disable IRTE Caching Support 2023-08-23 17:32:27 +02:00
drivers serial: stm32: Ignore return value of uart_remove_one_port() in .remove() 2023-08-23 17:32:29 +02:00
fs cifs: fix session state check in reconnect to avoid use-after-free issue 2023-08-23 17:32:29 +02:00
include iopoll: Call cpu_relax() in busy loops 2023-08-23 17:32:26 +02:00
init
io_uring io_uring: correct check for O_TMPFILE 2023-08-16 18:32:19 +02:00
ipc
kernel dma-remap: use kvmalloc_array/kvfree for larger dma memory remap 2023-08-23 17:32:27 +02:00
lib debugobjects: Recheck debug_objects_enabled before reporting 2023-08-11 12:14:25 +02:00
LICENSES
mm mm: memory-failure: avoid false hwpoison page mapped error info 2023-08-16 18:32:20 +02:00
net nexthop: Fix infinite nexthop bucket dump when using maximum nexthop ID 2023-08-16 18:32:28 +02:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:14:18 +02:00
samples
scripts
security
sound ASoC: SOF: core: Free the firmware trace before calling snd_sof_shutdown() 2023-08-23 17:32:29 +02:00
tools nexthop: Fix infinite nexthop bucket dump when using maximum nexthop ID 2023-08-16 18:32:28 +02:00
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Makefile Linux 6.4.11 2023-08-16 18:32:31 +02:00
README

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.