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A significant portion of this driver lacks error handling. As a first step, add error paths to bcm_gpio_set_power(), bcm_open(), bcm_close(), bcm_suspend_device(), bcm_resume_device(), bcm_resume(), bcm_probe() and bcm_serdev_probe(). (I've also scrutinized bcm_suspend() but think it's fine as is.) Those are all the functions accessing the device wake and shutdown GPIO. On Apple Macs the pins are accessed through ACPI methods, which may fail for various reasons, hence proper error handling is necessary. Non-Macs access the pins directly, which may fail as well but the GPIO core does not yet pass back errors to consumers. Cc: Frédéric Danis <frederic.danis.oss@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> |
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| drivers | ||
| firmware | ||
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.