ARM: mmp: let clk_disable() return immediately if clk is NULL
In many of clk_disable() implementations, it is a no-op for a NULL pointer input, but this is one of the exceptions. Making it treewide consistent will allow clock consumers to call clk_disable() without NULL pointer check. Signed-off-by:Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de>
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