[PATCH 2/2] sh: kfr2r09: fix i2c adapter leak on serial console setup

Make sure to drop the reference taken to the I2C adapter (and its
module) when setting up the serial console which prevents the adapter
from ever being deregistered.

Fixes: e6d8460aca63 ("sh: Improve kfr2r09 serial port setup code")
Cc: [email protected]	# 2.6.33
Cc: Magnus Damm <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
---
 arch/sh/boards/mach-kfr2r09/setup.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index 62af9a9db039..8f436bcc1ae1 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -418,7 +418,7 @@ static int kfr2r09_serial_i2c_setup(void)
 	msg.flags = 0;
 	ret = i2c_transfer(a, &msg, 1);
 	if (ret != 1)
-		return -ENODEV;
+		goto err_put_adapter;
 
 	buf[0] = 0;
 	msg.addr = 0x09;
@@ -427,7 +427,7 @@ static int kfr2r09_serial_i2c_setup(void)
 	msg.flags = I2C_M_RD;
 	ret = i2c_transfer(a, &msg, 1);
 	if (ret != 1)
-		return -ENODEV;
+		goto err_put_adapter;
 
 	buf[1] = buf[0] | (1 << 6);
 	buf[0] = 0x13;
@@ -437,9 +437,16 @@ static int kfr2r09_serial_i2c_setup(void)
 	msg.flags = 0;
 	ret = i2c_transfer(a, &msg, 1);
 	if (ret != 1)
-		return -ENODEV;
+		goto err_put_adapter;
+
+	i2c_put_adapter(a);
 
 	return 0;
+
+err_put_adapter:
+	i2c_put_adapter(a);
+
+	return -ENODEV;
 }
 #else
 static int kfr2r09_usb0_gadget_i2c_setup(void)
-- 
2.53.0