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regulator: fix dangling pointers

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Fix I2C-drivers which missed setting clientdata to NULL before freeing the
structure it points to. Also fix drivers which do this _after_ the structure
was freed already.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Wolfram Sang 2010-03-20 15:12:58 +01:00 committed by Liam Girdwood
parent 451a73cd46
commit 8b4709ecea
3 changed files with 4 additions and 3 deletions
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2
drivers/regulator/max1586.c
View File

@ -243,8 +243,8 @@ static int __devexit max1586_pmic_remove(struct i2c_client *client)
for (i = 0; i <= MAX1586_V6; i++)
if (rdev[i])
regulator_unregister(rdev[i]);
kfree(rdev);
i2c_set_clientdata(client, NULL);
kfree(rdev);
return 0;
}

3
drivers/regulator/max8649.c
View File

@ -356,6 +356,7 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client,
dev_info(info->dev, "Max8649 regulator device is detected.\n");
return 0;
out:
i2c_set_clientdata(client, NULL);
kfree(info);
return ret;
}
@ -367,9 +368,9 @@ static int __devexit max8649_regulator_remove(struct i2c_client *client)
if (info) {
if (info->regulator)
regulator_unregister(info->regulator);
i2c_set_clientdata(client, NULL);
kfree(info);
}
i2c_set_clientdata(client, NULL);
return 0;
}

2
drivers/regulator/max8660.c
View File

@ -470,8 +470,8 @@ static int __devexit max8660_remove(struct i2c_client *client)
for (i = 0; i < MAX8660_V_END; i++)
if (rdev[i])
regulator_unregister(rdev[i]);
kfree(rdev);
i2c_set_clientdata(client, NULL);
kfree(rdev);
return 0;
}