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91ae7928fb1f4415623d9fad0833989c4569f418
[ Upstream commit707aeea13a] Remove spin_lock_irqsave in stm32_config_rs485, it cause recursive locking. Already locked in uart_set_rs485_config. Fixes:1bcda09d29("serial: stm32: add support for RS485 hardware control mode") Signed-off-by: Borut Seljak <borut.seljak@t-2.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.
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