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[ Upstream commit22be5a10d0] In the em28xx_init_rev, if em28xx_audio_setup fails, this function fails to deallocate the media_dev allocated in the em28xx_media_device_init. Fix this by adding em28xx_unregister_media_device to free media_dev. BTW, this patch is tested in my local syzkaller instance, and it can prevent the memory leak from occurring again. CC: Pavel Skripkin <paskripkin@gmail.com> Fixes:37ecc7b127("[media] em28xx: add media controller support") Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Reported-by: syzkaller <syzkaller@googlegroups.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.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.
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.