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Return the value clk_prepare_enable() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220825072828.229294-1-ye.xingchen@zte.com.cn

Signed-off-by: Mark Brown <broonie@kernel.org>