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Jinjie Ruan
6ee8a9a772
Both debugfs_create_dir() and debugfs_create_file() return ERR_PTR and never return NULL. As Greg suggested, this patch removes the error checking for debugfs_create_dir in phy-rtk-usb2.c and phy-rtk-usb3.c. This is because the DebugFS kernel API is developed in a way that the caller can safely ignore the errors that occur during the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in start_creating() which can handle it gracefully. So these checks are unnecessary. Fixes:134e6d25f6("phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY") Fixes:adda6e82a7("phy: realtek: usb: Add driver for the Realtek SoC USB 3.0 PHY") Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20230901075231.1368947-1-ruanjinjie@huawei.com Signed-off-by: Vinod Koul <vkoul@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.