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Ruliang Lin 2d9b91b6ce ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init` [ Upstream commit `0d727e1856` ] Smatch complains that: snd_usb_caiaq_input_init() warn: missing error code 'ret' This patch adds a new case to handle the situation where the device does not support any input methods in the `snd_usb_caiaq_input_init` function. It returns an `-EINVAL` error code to indicate that no input methods are supported on the device. Fixes: `523f1dce37` ("[ALSA] Add Native Instrument usb audio device support") Signed-off-by: Ruliang Lin <u202112092@hust.edu.cn> Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn> Acked-by: Daniel Mack <daniel@zonque.org> Link: https://lore.kernel.org/r/20230504065054.3309-1-u202112092@hust.edu.cn Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-05-17 13:58:50 +02:00
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sound	ALSA: caiaq: input: Add error handling for unsupported input methods in `snd_usb_caiaq_input_init`	2023-05-17 13:58:50 +02:00
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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.