hwmon: (w83627ehf) Fix memory leak in probe function

commit 32260d94408c553dca4ce54104edf79941a27536 upstream.

The driver probe function leaked memory if creating the cpu0_vid attribute file
failed. Fix by converting the driver to use devm_kzalloc.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 7a44a567fb0b9fb189969e201e0d12abc10d394c..3ffa1fa81ef2aeae8d3dba484963e186393025f9 100644 (file)
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -2004,7 +2004,8 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
                goto exit;
        }
 
-       data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL);
+       data = devm_kzalloc(&pdev->dev, sizeof(struct w83627ehf_data),
+                           GFP_KERNEL);
        if (!data) {
                err = -ENOMEM;
                goto exit_release;
@@ -2498,9 +2499,8 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 
 exit_remove:
        w83627ehf_device_remove_files(dev);
-       kfree(data);
-       platform_set_drvdata(pdev, NULL);
 exit_release:
+       platform_set_drvdata(pdev, NULL);
        release_region(res->start, IOREGION_LENGTH);
 exit:
        return err;
@@ -2514,7 +2514,6 @@ static int __devexit w83627ehf_remove(struct platform_device *pdev)
        w83627ehf_device_remove_files(&pdev->dev);
        release_region(data->addr, IOREGION_LENGTH);
        platform_set_drvdata(pdev, NULL);
-       kfree(data);
 
        return 0;
 }