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commit8c9620b1ccupstream. The BCM2835 MMC host driver requests a DMA channel on probe but neglects to release the channel in the probe error path. The channel may therefore be leaked, in particular if devm_clk_get() causes probe deferral. Fix it. Fixes:660fc733bd("mmc: bcm2835: Add new driver for the sdhost controller.") Signed-off-by: Lukas Wunner <lukas@wunner.de> Cc: stable@vger.kernel.org # v4.12+ Cc: Frank Pavlic <f.pavlic@kunbus.de> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
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.