[PATCH 3.13 072/151] mfd: 88pm860x: Fix I2C device resource leak on regmap init fail

Kamal Mostafa kamal at canonical.com
Fri May 2 15:37:40 UTC 2014 -stable review patch.  If anyone has any objections, please let me know.


From: Krzysztof Kozlowski <k.kozlowski at samsung.com>

commit a7ab1c8b261305af583ce26bb4a14f555fdaa73e upstream.

During probe the driver allocates dummy I2C device for companion chip
and then allocates a regmap for it. If regmap_init_i2c() fails then the
I2C driver (allocated with i2c_new_dummy()) is not freed and this
resource leaks.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski at samsung.com>
Signed-off-by: Lee Jones <lee.jones at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
 drivers/mfd/88pm860x-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index c9b1f64..2461014 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1185,6 +1185,7 @@ static int pm860x_probe(struct i2c_client *client,
 			ret = PTR_ERR(chip->regmap_companion);
 				"Failed to allocate register map: %d\n", ret);
+			i2c_unregister_device(chip->companion);
 			return ret;
 		i2c_set_clientdata(chip->companion, chip);

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