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ds2490 driver was doing USB transfers from / to buffers on a stack. This is not permitted and made the driver non-working with vmapped stacks. Since all these transfers are done under the same bus_mutex lock we can simply use shared buffers in a device private structure for two most common of them. While we are at it, let's also fix a comparison between int and size_t in ds9490r_search() which made the driver spin in this function if state register get requests were failing. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Cc: stable <stable@vger.kernel.org> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.