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regulator: Fix memory leak in max8998_pmic_probe failure path
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Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Axel Lin authored and Liam Girdwood committed May 27, 2011
1 parent 77fa44d commit 6be6e96
Showing 1 changed file with 13 additions and 9 deletions.
22 changes: 13 additions & 9 deletions drivers/regulator/max8998.c
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Original file line number Diff line number Diff line change
Expand Up @@ -732,13 +732,15 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
if (!pdata->buck1_set1) {
printk(KERN_ERR "MAX8998 SET1 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck1_set1);
return -EIO;
ret = -EIO;
goto err_free_mem;
}
/* Check if SET2 is not equal to 0 */
if (!pdata->buck1_set2) {
printk(KERN_ERR "MAX8998 SET2 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck1_set2);
return -EIO;
ret = -EIO;
goto err_free_mem;
}

gpio_request(pdata->buck1_set1, "MAX8998 BUCK1_SET1");
Expand All @@ -758,7 +760,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck1_vol[0] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE1, i);
if (ret)
return ret;
goto err_free_mem;

/* Set predefined value for BUCK1 register 2 */
i = 0;
Expand All @@ -770,7 +772,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck1_vol[1] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE2, i);
if (ret)
return ret;
goto err_free_mem;

/* Set predefined value for BUCK1 register 3 */
i = 0;
Expand All @@ -782,7 +784,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck1_vol[2] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE3, i);
if (ret)
return ret;
goto err_free_mem;

/* Set predefined value for BUCK1 register 4 */
i = 0;
Expand All @@ -794,7 +796,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck1_vol[3] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE4, i);
if (ret)
return ret;
goto err_free_mem;

}

Expand All @@ -803,7 +805,8 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
if (!pdata->buck2_set3) {
printk(KERN_ERR "MAX8998 SET3 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck2_set3);
return -EIO;
ret = -EIO;
goto err_free_mem;
}
gpio_request(pdata->buck2_set3, "MAX8998 BUCK2_SET3");
gpio_direction_output(pdata->buck2_set3,
Expand All @@ -818,7 +821,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck2_vol[0] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE1, i);
if (ret)
return ret;
goto err_free_mem;

/* BUCK2 register 2 */
i = 0;
Expand All @@ -830,7 +833,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
max8998->buck2_vol[1] = i;
ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE2, i);
if (ret)
return ret;
goto err_free_mem;
}

for (i = 0; i < pdata->num_regulators; i++) {
Expand Down Expand Up @@ -860,6 +863,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
if (rdev[i])
regulator_unregister(rdev[i]);

err_free_mem:
kfree(max8998->rdev);
kfree(max8998);

Expand Down

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