diff mbox

[2/7] mfd: 88pm860x: Fix I2C device resource leak on regmap init fail

Message ID 1392113015-11180-2-git-send-email-k.kozlowski@samsung.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Krzysztof Kozlowski Feb. 11, 2014, 10:03 a.m. UTC
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@samsung.com>
Cc: stable@vger.kernel.org
---
 drivers/mfd/88pm860x-core.c |    1 +
 1 file changed, 1 insertion(+)

Comments

Lee Jones Feb. 11, 2014, 12:22 p.m. UTC | #1
On Tue, 11 Feb 2014, Krzysztof Kozlowski wrote:

> 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@samsung.com>
> Cc: stable@vger.kernel.org
> ---
>  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 e456be9a7c67..bcfc9e85b4a0 100644
> --- a/drivers/mfd/88pm860x-core.c
> +++ b/drivers/mfd/88pm860x-core.c
> @@ -1190,6 +1190,7 @@ static int pm860x_probe(struct i2c_client *client,
>  			ret = PTR_ERR(chip->regmap_companion);
>  			dev_err(&chip->companion->dev,
>  				"Failed to allocate register map: %d\n", ret);
> +			i2c_unregister_device(chip->companion);
>  			return ret;
>  		}
>  		i2c_set_clientdata(chip->companion, chip);

Applied, thanks.
diff mbox

Patch

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index e456be9a7c67..bcfc9e85b4a0 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1190,6 +1190,7 @@  static int pm860x_probe(struct i2c_client *client,
 			ret = PTR_ERR(chip->regmap_companion);
 			dev_err(&chip->companion->dev,
 				"Failed to allocate register map: %d\n", ret);
+			i2c_unregister_device(chip->companion);
 			return ret;
 		}
 		i2c_set_clientdata(chip->companion, chip);