linux-kernel - [PATCH 4.19 114/243] serial: imx: fix error handling in console

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Message-Id: <20191211150346.829357354@linuxfoundation.org>
Date:   Wed, 11 Dec 2019 16:04:36 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Stefan Agner <stefan@...er.ch>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 114/243] serial: imx: fix error handling in console_setup

From: Stefan Agner <stefan@...er.ch>

[ 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: 1cf93e0d5488 ("serial: imx: remove the uart_console() check")
Signed-off-by: Stefan Agner <stefan@...er.ch>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/tty/serial/imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 105de92b0b3bf..989ca7d662f3f 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2071,7 +2071,7 @@ imx_uart_console_setup(struct console *co, char *options)
 
 	retval = clk_prepare(sport->clk_per);
 	if (retval)
-		clk_disable_unprepare(sport->clk_ipg);
+		clk_unprepare(sport->clk_ipg);
 
 error_console:
 	return retval;
-- 
2.20.1