5c02a42065
Since NULL is used as valid clock object on optional clocks we have to handle this case in avr32 implementation as well. Fixes: e1824dfe0d8e (net: macb: Adjust tx_clk when link speed changes) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>