Chunfeng Yun bbe2028f43 usb: misc: usb3503: get optional clock by devm_clk_get_optional() ...

When the driver tries to get optional clock, it ignores all errors except
-EPROBE_DEFER, but if only ignores -ENOENT, it will cover some real errors,
such as -ENOMEM, so use devm_clk_get_optional() to get optional clock.
And remove unnecessary stack variable clk.

Cc: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-04-19 14:24:25 +02:00

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