serial: 8250_uniphier: call clk_disable_unprepare() on failure path
If serial8250_register_8250_port() fails, disable and unprepare the clock before exiting. Fixes: 1a8d2903 ("serial: 8250_uniphier: add UniPhier serial driver") Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: NMatthias Brugger <matthias.bgg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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