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There's a logic at the VB2 core that produces a WARN_ON if there are still buffers waiting to be filled. However, it doesn't indicate what buffers are still opened, with makes harder to identify issues inside caller drivers. So, add a new pr_warn() pointing to such buffers. That, together with debug instrumentation inside the drivers can make easier to identify where the problem is. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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.