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[ Upstream commit5abda7a166] In dm1105_probe, it called dm1105_ir_init and bound &dm1105->ir.work with dm1105_emit_key. When it handles IRQ request with dm1105_irq, it may call schedule_work to start the work. When we call dm1105_remove to remove the driver, there may be a sequence as follows: Fix it by finishing the work before cleanup in dm1105_remove CPU0 CPU1 |dm1105_emit_key dm1105_remove | dm1105_ir_exit | rc_unregister_device | rc_free_device | rc_dev_release | kfree(dev); | | | rc_keydown | //use Fixes:34d2f9bf18("V4L/DVB: dm1105: use dm1105_dev & dev instead of dm1105dvb") Signed-off-by: Zheng Wang <zyytlz.wz@163.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> 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.
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.