[PATCH AUTOSEL 4.18 080/136] serial: pxa: Fix an error handling path in 'serial_pxa_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jail...@wanadoo.fr>

[ Upstream commit 95a0e656580fab3128c7bee5f660c50784f53651 ]

If port.line is out of range, we still need to release some resources, or
we will leak them.

Fixes: afc7851fab83 ("serial: pxa: Fix out-of-bounds access through serial port 
index")
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 drivers/tty/serial/pxa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index eda3c7710d6a..4932b674f7ef 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -887,7 +887,8 @@ static int serial_pxa_probe(struct platform_device *dev)
                goto err_clk;
        if (sport->port.line >= ARRAY_SIZE(serial_pxa_ports)) {
                dev_err(&dev->dev, "serial%d out of range\n", sport->port.line);
-               return -EINVAL;
+               ret = -EINVAL;
+               goto err_clk;
        }
        snprintf(sport->name, PXA_NAME_LEN - 1, "UART%d", sport->port.line + 1);
 
-- 
2.17.1