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Commit760f1dc295("net: stmmac: add sanity check to device_property_read_u32_array call") introduced error checking of the device_property_read_u32_array() call in stmmac_mdio_reset(). This results in the following error when the "snps,reset-delays-us" property is not defined in devicetree: invalid property snps,reset-delays-us This sanity check made sense until commit84ce4d0f9f("net: stmmac: initialize the reset delay array") ensured that there are fallback values for the reset delay if the "snps,reset-delays-us" property is absent. That was at the cost of making that property mandatory though. Drop the sanity check for device_property_read_u32_array() and thus make the "snps,reset-delays-us" property optional again (avoiding the error message while loading the stmmac driver with a .dtb where the property is absent). Fixes:760f1dc295("net: stmmac: add sanity check to device_property_read_u32_array call") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.