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if user plug out sd card slowly, finally card is plugged out but cat /proc/partitions can find that card is still exist in kernel. that's because alougth get card detect interrupt but CMD13 still can get correct response(all other pins are connected expect card detect pin). add ops->get_cd() can avoid this issue. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.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.