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777260a5c9
Remove unecessary checking if dmac is NULL. If Cadence nand controller driver uses DMA engine then cdns_ctrl->dmac cannot be NULL. It is verified during driver initialization. If Cadence nand controller driver does not use DMA engine then CPU IO read/write are executed instead of slave DMA transfer. In that case cdns_ctrl->dmac is not used at all. Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Piotr Sroka <piotrs@cadence.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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.
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.