[PATCH] [HWMON] kmalloc + memset -> kzalloc conversion

[PATCH] [HWMON] kmalloc + memset -> kzalloc conversion

[Deepak Saxena]

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>

diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
--- a/drivers/hwmon/adm1021.c
+++ b/drivers/hwmon/adm1021.c
@@ -204,11 +204,10 @@ static int adm1021_detect(struct i2c_ada
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access adm1021_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto error0;
 	}
-	memset(data, 0, sizeof(struct adm1021_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c
--- a/drivers/hwmon/adm1025.c
+++ b/drivers/hwmon/adm1025.c
@@ -331,11 +331,10 @@ static int adm1025_detect(struct i2c_ada
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct adm1025_data));
 
 	/* The common I2C client data is placed right before the
 	   ADM1025-specific data. */
diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
--- a/drivers/hwmon/adm1026.c
+++ b/drivers/hwmon/adm1026.c
@@ -1470,13 +1470,11 @@ int adm1026_detect(struct i2c_adapter *a
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access adm1026_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
 
-	memset(data, 0, sizeof(struct adm1026_data));
-
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
 	new_client->addr = address;
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -740,11 +740,10 @@ static int adm1031_detect(struct i2c_ada
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct adm1031_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c
--- a/drivers/hwmon/adm9240.c
+++ b/drivers/hwmon/adm9240.c
@@ -513,11 +513,10 @@ static int adm9240_detect(struct i2c_ada
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct adm9240_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct adm9240_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct adm9240_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
--- a/drivers/hwmon/asb100.c
+++ b/drivers/hwmon/asb100.c
@@ -629,19 +629,17 @@ static int asb100_detect_subclients(stru
 	int i, id, err;
 	struct asb100_data *data = i2c_get_clientdata(new_client);
 
-	data->lm75[0] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!(data->lm75[0])) {
 		err = -ENOMEM;
 		goto ERROR_SC_0;
 	}
-	memset(data->lm75[0], 0x00, sizeof(struct i2c_client));
 
-	data->lm75[1] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!(data->lm75[1])) {
 		err = -ENOMEM;
 		goto ERROR_SC_1;
 	}
-	memset(data->lm75[1], 0x00, sizeof(struct i2c_client));
 
 	id = i2c_adapter_id(adapter);
 
@@ -724,12 +722,11 @@ static int asb100_detect(struct i2c_adap
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access asb100_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct asb100_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL))) {
 		pr_debug("asb100.o: detect failed, kmalloc failed!\n");
 		err = -ENOMEM;
 		goto ERROR0;
 	}
-	memset(data, 0, sizeof(struct asb100_data));
 
 	new_client = &data->client;
 	init_MUTEX(&data->lock);
diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c
--- a/drivers/hwmon/atxp1.c
+++ b/drivers/hwmon/atxp1.c
@@ -266,12 +266,11 @@ static int atxp1_detect(struct i2c_adapt
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct atxp1_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct atxp1_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
 
-	memset(data, 0, sizeof(struct atxp1_data));
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
 
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -200,11 +200,10 @@ int ds1621_detect(struct i2c_adapter *ad
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access ds1621_{read,write}_value. */
-	if (!(data = kmalloc(sizeof(struct ds1621_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct ds1621_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct ds1621_data));
 	
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/fscher.c b/drivers/hwmon/fscher.c
--- a/drivers/hwmon/fscher.c
+++ b/drivers/hwmon/fscher.c
@@ -303,11 +303,10 @@ static int fscher_detect(struct i2c_adap
 	/* OK. For now, we presume we have a valid client. We now create the
 	 * client structure, even though we cannot fill it completely yet.
 	 * But it allows us to access i2c_smbus_read_byte_data. */
-	if (!(data = kmalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
   	}
-	memset(data, 0, sizeof(struct fscher_data));
 
 	/* The common I2C client data is placed right before the
 	 * Hermes-specific data. */
diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c
--- a/drivers/hwmon/fscpos.c
+++ b/drivers/hwmon/fscpos.c
@@ -453,11 +453,10 @@ int fscpos_detect(struct i2c_adapter *ad
 	 * But it allows us to access fscpos_{read,write}_value.
 	 */
 
-	if (!(data = kmalloc(sizeof(struct fscpos_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct fscpos_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -365,11 +365,10 @@ static int gl518_detect(struct i2c_adapt
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access gl518_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct gl518_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c
--- a/drivers/hwmon/gl520sm.c
+++ b/drivers/hwmon/gl520sm.c
@@ -536,11 +536,10 @@ static int gl520_detect(struct i2c_adapt
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access gl520_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct gl520_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct gl520_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -788,11 +788,10 @@ int it87_detect(struct i2c_adapter *adap
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access it87_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct it87_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR1;
 	}
-	memset(data, 0, sizeof(struct it87_data));
 
 	new_client = &data->client;
 	if (is_isa)
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -375,11 +375,10 @@ static int lm63_detect(struct i2c_adapte
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct lm63_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm63_data));
 
 	/* The common I2C client data is placed right before the
 	   LM63-specific data. */
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -127,11 +127,10 @@ static int lm75_detect(struct i2c_adapte
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access lm75_{read,write}_value. */
-	if (!(data = kmalloc(sizeof(struct lm75_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm75_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm75_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c
--- a/drivers/hwmon/lm77.c
+++ b/drivers/hwmon/lm77.c
@@ -226,11 +226,10 @@ static int lm77_detect(struct i2c_adapte
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access lm77_{read,write}_value. */
-	if (!(data = kmalloc(sizeof(struct lm77_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm77_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
--- a/drivers/hwmon/lm78.c
+++ b/drivers/hwmon/lm78.c
@@ -540,11 +540,10 @@ int lm78_detect(struct i2c_adapter *adap
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access lm78_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct lm78_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm78_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR1;
 	}
-	memset(data, 0, sizeof(struct lm78_data));
 
 	new_client = &data->client;
 	if (is_isa)
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -407,11 +407,10 @@ int lm80_detect(struct i2c_adapter *adap
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access lm80_{read,write}_value. */
-	if (!(data = kmalloc(sizeof(struct lm80_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm80_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
--- a/drivers/hwmon/lm83.c
+++ b/drivers/hwmon/lm83.c
@@ -230,11 +230,10 @@ static int lm83_detect(struct i2c_adapte
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct lm83_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm83_data));
 
 	/* The common I2C client data is placed right after the
 	 * LM83-specific data. */
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -1033,11 +1033,10 @@ int lm85_detect(struct i2c_adapter *adap
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access lm85_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR0;
 	}
-	memset(data, 0, sizeof(struct lm85_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
--- a/drivers/hwmon/lm87.c
+++ b/drivers/hwmon/lm87.c
@@ -554,11 +554,10 @@ static int lm87_detect(struct i2c_adapte
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct lm87_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm87_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm87_data));
 
 	/* The common I2C client data is placed right before the
 	   LM87-specific data. */
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -370,11 +370,10 @@ static int lm90_detect(struct i2c_adapte
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct lm90_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm90_data));
 
 	/* The common I2C client data is placed right before the
 	   LM90-specific data. */
diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c
--- a/drivers/hwmon/lm92.c
+++ b/drivers/hwmon/lm92.c
@@ -300,11 +300,10 @@ static int lm92_detect(struct i2c_adapte
 					    | I2C_FUNC_SMBUS_WORD_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct lm92_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct lm92_data));
 
 	/* Fill in enough client fields so that we can read from the chip,
 	   which is required for identication */
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c
--- a/drivers/hwmon/max1619.c
+++ b/drivers/hwmon/max1619.c
@@ -197,11 +197,10 @@ static int max1619_detect(struct i2c_ada
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct max1619_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct max1619_data));
 
 	/* The common I2C client data is placed right before the
 	   MAX1619-specific data. */
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -754,9 +754,8 @@ static int pc87360_detect(struct i2c_ada
 	const char *name = "pc87360";
 	int use_thermistors = 0;
 
-	if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
+	if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
 		return -ENOMEM;
-	memset(data, 0x00, sizeof(struct pc87360_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -518,11 +518,10 @@ static int sis5595_detect(struct i2c_ada
 			goto exit_release;
 	}
 
-	if (!(data = kmalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit_release;
 	}
-	memset(data, 0, sizeof(struct sis5595_data));
 
 	new_client = &data->client;
 	new_client->addr = address;
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
--- a/drivers/hwmon/smsc47b397.c
+++ b/drivers/hwmon/smsc47b397.c
@@ -244,11 +244,10 @@ static int smsc47b397_detect(struct i2c_
 		return -EBUSY;
 	}
 
-	if (!(data = kmalloc(sizeof(struct smsc47b397_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct smsc47b397_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto error_release;
 	}
-	memset(data, 0x00, sizeof(struct smsc47b397_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -396,11 +396,10 @@ static int smsc47m1_detect(struct i2c_ad
 		return -EBUSY;
 	}
 
-	if (!(data = kmalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto error_release;
 	}
-	memset(data, 0x00, sizeof(struct smsc47m1_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
--- a/drivers/hwmon/via686a.c
+++ b/drivers/hwmon/via686a.c
@@ -617,11 +617,10 @@ static int via686a_detect(struct i2c_ada
 		return -ENODEV;
 	}
 
-	if (!(data = kmalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit_release;
 	}
-	memset(data, 0, sizeof(struct via686a_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -678,11 +678,10 @@ static int w83627ehf_detect(struct i2c_a
 		goto exit;
 	}
 
-	if (!(data = kmalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit_release;
 	}
-	memset(data, 0, sizeof(struct w83627ehf_data));
 
 	client = &data->client;
 	i2c_set_clientdata(client, data);
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -1041,11 +1041,10 @@ static int w83627hf_detect(struct i2c_ad
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access w83627hf_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR1;
 	}
-	memset(data, 0, sizeof(struct w83627hf_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -889,12 +889,11 @@ w83781d_detect_subclients(struct i2c_ada
 	const char *client_name = "";
 	struct w83781d_data *data = i2c_get_clientdata(new_client);
 
-	data->lm75[0] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!(data->lm75[0])) {
 		err = -ENOMEM;
 		goto ERROR_SC_0;
 	}
-	memset(data->lm75[0], 0x00, sizeof (struct i2c_client));
 
 	id = i2c_adapter_id(adapter);
 
@@ -920,12 +919,11 @@ w83781d_detect_subclients(struct i2c_ada
 
 	if (kind != w83783s) {
 
-		data->lm75[1] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+		data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 		if (!(data->lm75[1])) {
 			err = -ENOMEM;
 			goto ERROR_SC_1;
 		}
-		memset(data->lm75[1], 0x0, sizeof(struct i2c_client));
 
 		if (force_subclients[0] == id &&
 		    force_subclients[1] == address) {
@@ -1064,11 +1062,10 @@ w83781d_detect(struct i2c_adapter *adapt
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access w83781d_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct w83781d_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR1;
 	}
-	memset(data, 0, sizeof(struct w83781d_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -1086,11 +1086,10 @@ w83792d_create_subclient(struct i2c_adap
 	int err;
 	struct i2c_client *sub_client;
 
-	(*sub_cli) = sub_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	(*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!(sub_client)) {
 		return -ENOMEM;
 	}
-	memset(sub_client, 0x00, sizeof(struct i2c_client));
 	sub_client->addr = 0x48 + addr;
 	i2c_set_clientdata(sub_client, NULL);
 	sub_client->adapter = adapter;
@@ -1184,11 +1183,10 @@ w83792d_detect(struct i2c_adapter *adapt
 	   client structure, even though we cannot fill it completely yet.
 	   But it allows us to access w83792d_{read,write}_value. */
 
-	if (!(data = kmalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto ERROR0;
 	}
-	memset(data, 0, sizeof(struct w83792d_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c
--- a/drivers/hwmon/w83l785ts.c
+++ b/drivers/hwmon/w83l785ts.c
@@ -158,12 +158,10 @@ static int w83l785ts_detect(struct i2c_a
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct w83l785ts_data));
-
 
 	/* The common I2C client data is placed right before the
 	 * W83L785TS-specific data. */
-- 
Deepak Saxena - dsaxena@plexity.net - http://www.plexity.net

Even a stopped clock gives the right time twice a day.

Re: [PATCH] [HWMON] kmalloc + memset -> kzalloc conversion

[Jean Delvare]

Hi Deepak,

> Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
> 
> diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
> --- a/drivers/hwmon/adm1021.c
> +++ b/drivers/hwmon/adm1021.c
> @@ -204,11 +204,10 @@ static int adm1021_detect(struct i2c_ada
>  	   client structure, even though we cannot fill it completely yet.
>  	   But it allows us to access adm1021_{read,write}_value. */
>  
> -	if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
> +	if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
>  		err = -ENOMEM;
>  		goto error0;
>  	}
> -	memset(data, 0, sizeof(struct adm1021_data));
> (...)

OK, I'll pick that patch. Three comments however:

1* Please exclude adm9240, it is already updated in my tree.

2* Please add some comment before your Signed-off-line, explaining what
the patch is all about. It doesn't need to be long, but it needs to
exist.

3* Please include diffstat output in the patch header.

Care to respin your patch?

As a side note, I don't think it was worth sending this to Linus,
Andrew and two mailing lists. There's nothing ground breaking here.
Send this kind of patches to me as the subsystem maintainer, CC LKML
for comments if you want, and that should be sufficient.

Thanks,
-- 
Jean Delvare

Re: [PATCH] [HWMON] kmalloc + memset -> kzalloc conversion

[Grant Coady]

On Sat, 1 Oct 2005 22:46:04 +0200, Jean Delvare <khali@linux-fr.org> wrote:

>Hi Deepak,
>
>> Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
>> 
>> diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
>> --- a/drivers/hwmon/adm1021.c
>> +++ b/drivers/hwmon/adm1021.c
>> @@ -204,11 +204,10 @@ static int adm1021_detect(struct i2c_ada
>>  	   client structure, even though we cannot fill it completely yet.
>>  	   But it allows us to access adm1021_{read,write}_value. */
>>  
>> -	if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
>> +	if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {

	if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {

instead?  Though lkml opinion seems to be split...

Cheers,
Grant.

Re: [PATCH] [HWMON] kmalloc + memset -> kzalloc conversion

[Alexey Dobriyan]

On Sun, Oct 02, 2005 at 07:45:36AM +1000, Grant Coady wrote:
> On Sat, 1 Oct 2005 22:46:04 +0200, Jean Delvare <khali@linux-fr.org> wrote:
> >> -	if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
> >> +	if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
> 
> 	if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {
> 
> instead?

One thing at a time. And leave sizeof(*p) vs sizeof(struct foo) to
maintainer, OK?