linux-kernel - [PATCH AUTOSEL 4.18 35/92] serial: 8250: of: Correct of_platform_serial

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Message-ID: <20180915012944.179481-35-alexander.levin@microsoft.com>
Date:   Sat, 15 Sep 2018 01:30:14 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Alexander Sverdlin <alexander.sverdlin@...ia.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.18 35/92] serial: 8250: of: Correct
 of_platform_serial_setup() error handling

From: Alexander Sverdlin <alexander.sverdlin@...ia.com>

[ Upstream commit b29330d829042512fabb2bfa3bbfa32df1115594 ]

Don't dispose IRQ mapping before it has been created.

Fixes: aa9594740 ("serial: 8250_of: Add IO space support")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...ia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/tty/serial/8250/8250_of.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index bfb37f0be22f..863e86b9a424 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -124,7 +124,7 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 				dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n",
 					 prop);
 				ret = -EINVAL;
-				goto err_dispose;
+				goto err_unprepare;
 			}
 		}
 		port->flags |= UPF_IOREMAP;
-- 
2.17.1