0584bff096
The platform_get_irq*() interfaces return either a negative error number or a valid IRQ. 0 is not a valid return value, so check for "< 0" to detect failure as recommended by the function documentation. On failure, return the error number from platform_get_irq*() instead of making up a new one. Link: https://lore.kernel.org/r/cover.1583952275.git.amanharitsh123@gmail.com [bhelgaas: commit log, squash into one patch] Signed-off-by: Aman Sharma <amanharitsh123@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Richard Zhu <hongxing.zhu@nxp.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Ryder Lee <ryder.lee@mediatek.com> Cc: Marc Gonzalez <marc.w.gonzalez@free.fr>
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.