serial: imx: fix error handling in console_setup
[ Upstream commit 63fd4b94b948c14eeb27a3bbf50ea0f7f0593bad ] The ipg clock only needs to be unprepared in case preparing per clock fails. The ipg clock has already disabled at the point. Fixes: 1cf93e0d ("serial: imx: remove the uart_console() check") Signed-off-by: NStefan Agner <stefan@agner.ch> Reviewed-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NSasha Levin <sashal@kernel.org>
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