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regulator: Fix memory leak in max8998_pmic_probe failure path

PATCH Applied Axel Lin 4 participants 4 messages May 13, 2011 Voltage and current regulator framework

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Axel Lin

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PATCH 1/1 regulator: Fix memory leak in max8998_pmic_probe failure path

Signed-off-by Axel Lin <[email protected]>
---
 drivers/regulator/max8998.c |   22 +++++++++++++---------
 1 files changed, 13 insertions(+), 9 deletions(-)
drivers/regulator/max8998.c +13 -9
index f57e9c4..41a1495 100644
@@ -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");

@@ -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;

@@ -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;

@@ -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;

@@ -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;
 
 	}
 

@@ -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,

@@ -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;

@@ -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++) {

@@ -860,6 +863,7 @@ err:
 		if (rdev[i])
 			regulator_unregister(rdev[i]);
 
+err_free_mem:
 	kfree(max8998->rdev);
 	kfree(max8998);
Signature · 1 line
1.7.1