[PATCH] i2c: kzalloc conversion, other drivers

Use kzalloc instead of kmalloc+memset in all remaining i2c bus and
chip drivers.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

22 files changed, 25 insertions, 52 deletions

diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index 0d29e78dff63..aface7938a5b 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -344,10 +344,9 @@ static int __devinit amd8111_probe(struct pci_dev *dev, const struct pci_device_
 	if (~pci_resource_flags(dev, 0) & IORESOURCE_IO)
 		return -ENODEV;
 
-	smbus = kmalloc(sizeof(struct amd_smbus), GFP_KERNEL);
+	smbus = kzalloc(sizeof(struct amd_smbus), GFP_KERNEL);
 	if (!smbus)
 		return -ENOMEM;
-	memset(smbus, 0, sizeof(struct amd_smbus));
 
 	smbus->dev = dev;
 	smbus->base = pci_resource_start(dev, 0);
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index a3ed9590f028..1a587253d716 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -672,13 +672,12 @@ static int __devinit iic_probe(struct ocp_device *ocp){
 		printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
 			ocp->def->index);
 
-	if (!(dev = kmalloc(sizeof(*dev), GFP_KERNEL))){
+	if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) {
 		printk(KERN_CRIT "ibm-iic%d: failed to allocate device data\n",
 			ocp->def->index);
 		return -ENOMEM;
 	}
 
-	memset(dev, 0, sizeof(*dev));
 	dev->idx = ocp->def->index;
 	ocp_set_drvdata(ocp, dev);
 	
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index 0f7dfd8f4546..9888fae1f37a 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -440,19 +440,17 @@ iop3xx_i2c_probe(struct device *dev)
 	struct i2c_adapter *new_adapter;
 	struct i2c_algo_iop3xx_data *adapter_data;
 
-	new_adapter = kmalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
+	new_adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
 	if (!new_adapter) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memset((void*)new_adapter, 0, sizeof(*new_adapter));
 
-	adapter_data = kmalloc(sizeof(struct i2c_algo_iop3xx_data), GFP_KERNEL);
+	adapter_data = kzalloc(sizeof(struct i2c_algo_iop3xx_data), GFP_KERNEL);
 	if (!adapter_data) {
 		ret = -ENOMEM;
 		goto free_adapter;
 	}
-	memset((void*)adapter_data, 0, sizeof(*adapter_data));
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
diff --git a/drivers/i2c/busses/i2c-keywest.c b/drivers/i2c/busses/i2c-keywest.c
index 34e43c8d8d5e..ef281e0c567b 100644
--- a/drivers/i2c/busses/i2c-keywest.c
+++ b/drivers/i2c/busses/i2c-keywest.c
@@ -535,13 +535,12 @@ create_iface(struct device_node *np, struct device *dev)
 
 	tsize = sizeof(struct keywest_iface) +
 		(sizeof(struct keywest_chan) + 4) * nchan;
-	iface = (struct keywest_iface *) kmalloc(tsize, GFP_KERNEL);
+	iface = (struct keywest_iface *) kzalloc(tsize, GFP_KERNEL);
 	if (iface == NULL) {
 		printk(KERN_ERR "i2c-keywest: can't allocate inteface !\n");
 		pmac_low_i2c_unlock(np);
 		return -ENOMEM;
 	}
-	memset(iface, 0, tsize);
 	spin_lock_init(&iface->lock);
 	init_completion(&iface->complete);
 	iface->node = of_node_get(np);
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index b81c54620030..8491633005b8 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -296,10 +296,9 @@ static int fsl_i2c_probe(struct device *device)
 
 	pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;
 
-	if (!(i2c = kmalloc(sizeof(*i2c), GFP_KERNEL))) {
+	if (!(i2c = kzalloc(sizeof(*i2c), GFP_KERNEL))) {
 		return -ENOMEM;
 	}
-	memset(i2c, 0, sizeof(*i2c));
 
 	i2c->irq = platform_get_irq(pdev, 0);
 	i2c->flags = pdata->device_flags;
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 69709ee0b896..d0d2a6f1386e 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -500,13 +500,10 @@ mv64xxx_i2c_probe(struct device *dev)
 	if ((pd->id != 0) || !pdata)
 		return -ENODEV;
 
-	drv_data = kmalloc(sizeof(struct mv64xxx_i2c_data), GFP_KERNEL);
-
+	drv_data = kzalloc(sizeof(struct mv64xxx_i2c_data), GFP_KERNEL);
 	if (!drv_data)
 		return -ENOMEM;
 
-	memset(drv_data, 0, sizeof(struct mv64xxx_i2c_data));
-
 	if (mv64xxx_i2c_map_regs(pd, drv_data)) {
 		rc = -ENODEV;
 		goto exit_kfree;
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 5dc62114cc8d..87b6e26aa8a0 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -313,10 +313,9 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_
 	int res1, res2;
 
 	/* we support 2 SMBus adapters */
-	if (!(smbuses = (void *)kmalloc(2*sizeof(struct nforce2_smbus),
+	if (!(smbuses = (void *)kzalloc(2*sizeof(struct nforce2_smbus),
 				       	GFP_KERNEL)))
 		return -ENOMEM;
-	memset (smbuses, 0, 2*sizeof(struct nforce2_smbus));
 	pci_set_drvdata(dev, smbuses);
 
 	/* SMBus adapter 1 */
diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c
index fa506187fbe1..2854d858fc9b 100644
--- a/drivers/i2c/busses/i2c-parport.c
+++ b/drivers/i2c/busses/i2c-parport.c
@@ -155,12 +155,11 @@ static void i2c_parport_attach (struct parport *port)
 {
 	struct i2c_par *adapter;
 	
-	adapter = kmalloc(sizeof(struct i2c_par), GFP_KERNEL);
+	adapter = kzalloc(sizeof(struct i2c_par), GFP_KERNEL);
 	if (adapter == NULL) {
-		printk(KERN_ERR "i2c-parport: Failed to kmalloc\n");
+		printk(KERN_ERR "i2c-parport: Failed to kzalloc\n");
 		return;
 	}
-	memset(adapter, 0x00, sizeof(struct i2c_par));
 
 	pr_debug("i2c-parport: attaching to %s\n", port->name);
 	adapter->pdev = parport_register_device(port, "i2c-parport",
diff --git a/drivers/i2c/busses/i2c-pmac-smu.c b/drivers/i2c/busses/i2c-pmac-smu.c
index 8a9f5648a23d..bfefe7f7a53d 100644
--- a/drivers/i2c/busses/i2c-pmac-smu.c
+++ b/drivers/i2c/busses/i2c-pmac-smu.c
@@ -211,12 +211,11 @@ static int create_iface(struct device_node *np, struct device *dev)
 	}
 	busid = *reg;
 
-	iface = kmalloc(sizeof(struct smu_iface), GFP_KERNEL);
+	iface = kzalloc(sizeof(struct smu_iface), GFP_KERNEL);
 	if (iface == NULL) {
 		printk(KERN_ERR "i2c-pmac-smu: can't allocate inteface !\n");
 		return -ENOMEM;
 	}
-	memset(iface, 0, sizeof(struct smu_iface));
 	init_completion(&iface->complete);
 	iface->busid = busid;
 
diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c
index 92b744273577..42f8b5ce3bf8 100644
--- a/drivers/i2c/busses/i2c-prosavage.c
+++ b/drivers/i2c/busses/i2c-prosavage.c
@@ -241,14 +241,12 @@ static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_devic
 	struct s_i2c_chip *chip;
 	struct s_i2c_bus  *bus;
 
-        pci_set_drvdata(dev, kmalloc(sizeof(struct s_i2c_chip), GFP_KERNEL)); 
+	pci_set_drvdata(dev, kzalloc(sizeof(struct s_i2c_chip), GFP_KERNEL));
 	chip = (struct s_i2c_chip *)pci_get_drvdata(dev);
 	if (chip == NULL) {
 		return -ENOMEM;
 	}
 
-	memset(chip, 0, sizeof(struct s_i2c_chip));
-
 	base = dev->resource[0].start & PCI_BASE_ADDRESS_MEM_MASK;
 	len  = dev->resource[0].end - base + 1;
 	chip->mmio = ioremap_nocache(base, len);
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index a1d580e05361..d3478e084522 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -442,14 +442,13 @@ static int  __init scx200_acb_create(int base, int index)
 	int rc = 0;
 	char description[64];
 
-	iface = kmalloc(sizeof(*iface), GFP_KERNEL);
+	iface = kzalloc(sizeof(*iface), GFP_KERNEL);
 	if (!iface) {
 		printk(KERN_ERR NAME ": can't allocate memory\n");
 		rc = -ENOMEM;
 		goto errout;
 	}
 
-	memset(iface, 0, sizeof(*iface));
 	adapter = &iface->adapter;
 	i2c_set_adapdata(adapter, iface);
 	snprintf(adapter->name, I2C_NAME_SIZE, "SCx200 ACB%d", index);
diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c
index 9d3175c03395..01b037007410 100644
--- a/drivers/i2c/chips/ds1337.c
+++ b/drivers/i2c/chips/ds1337.c
@@ -243,11 +243,10 @@ static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind)
 				     I2C_FUNC_I2C))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct ds1337_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct ds1337_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct ds1337_data));
 	INIT_LIST_HEAD(&data->list);
 
 	/* The common I2C client data is placed right before the
diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
index ec640e9f085a..1596e6478782 100644
--- a/drivers/i2c/chips/ds1374.c
+++ b/drivers/i2c/chips/ds1374.c
@@ -193,11 +193,10 @@ static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind)
 	struct i2c_client *client;
 	int rc;
 
-	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!client)
 		return -ENOMEM;
 
-	memset(client, 0, sizeof(struct i2c_client));
 	strncpy(client->name, DS1374_DRV_NAME, I2C_NAME_SIZE);
 	client->addr = addr;
 	client->adapter = adap;
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 7fb739c43935..ee7cbc823fd1 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -171,11 +171,10 @@ int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
 					    | I2C_FUNC_SMBUS_BYTE))
 		goto exit;
 
-	if (!(data = kmalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct eeprom_data));
 
 	new_client = &data->client;
 	memset(data->data, 0xff, EEPROM_SIZE);
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
index 554f7ba61627..3df309ae44a6 100644
--- a/drivers/i2c/chips/m41t00.c
+++ b/drivers/i2c/chips/m41t00.c
@@ -174,11 +174,10 @@ m41t00_probe(struct i2c_adapter *adap, int addr, int kind)
 	struct i2c_client *client;
 	int rc;
 
-	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 	if (!client)
 		return -ENOMEM;
 
-	memset(client, 0, sizeof(struct i2c_client));
 	strncpy(client->name, M41T00_DRV_NAME, I2C_NAME_SIZE);
 	client->addr = addr;
 	client->adapter = adap;
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index 9e1aeb69abf9..b376a006883c 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -179,16 +179,14 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
 	if (address & 1)
 		return 0;
 
-	if (!(data = kmalloc(sizeof(struct max6875_data), GFP_KERNEL)))
+	if (!(data = kzalloc(sizeof(struct max6875_data), GFP_KERNEL)))
 		return -ENOMEM;
-	memset(data, 0, sizeof(struct max6875_data));
 
 	/* A fake client is created on the odd address */
-	if (!(fake_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+	if (!(fake_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit_kfree1;
 	}
-	memset(fake_client, 0, sizeof(struct i2c_client));
 
 	/* Init real i2c_client */
 	real_client = &data->client;
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c
index 225577fdda4d..59a930346229 100644
--- a/drivers/i2c/chips/pca9539.c
+++ b/drivers/i2c/chips/pca9539.c
@@ -122,11 +122,10 @@ static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet. */
-	if (!(data = kmalloc(sizeof(struct pca9539_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct pca9539_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct pca9539_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index 6525743ff9fd..2c2555d46fdf 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -127,11 +127,10 @@ int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet. */
-	if (!(data = kmalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct pcf8574_data));
 
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index 80f1df9a4500..3c815b153249 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -178,11 +178,10 @@ int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	/* OK. For now, we presume we have a valid client. We now create the
 	   client structure, even though we cannot fill it completely yet. */
-	if (!(data = kmalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
+	if (!(data = kzalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto exit;
 	}
-	memset(data, 0, sizeof(struct pcf8591_data));
 	
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
diff --git a/drivers/i2c/chips/rtc8564.c b/drivers/i2c/chips/rtc8564.c
index dd9d42d7b6e7..916cdc1af23c 100644
--- a/drivers/i2c/chips/rtc8564.c
+++ b/drivers/i2c/chips/rtc8564.c
@@ -148,12 +148,11 @@ static int rtc8564_attach(struct i2c_adapter *adap, int addr, int kind)
 		{addr, I2C_M_RD, 2, data}
 	};
 
-	d = kmalloc(sizeof(struct rtc8564_data), GFP_KERNEL);
+	d = kzalloc(sizeof(struct rtc8564_data), GFP_KERNEL);
 	if (!d) {
 		ret = -ENOMEM;
 		goto done;
 	}
-	memset(d, 0, sizeof(struct rtc8564_data));
 	new_client = &d->client;
 
 	strlcpy(new_client->name, "RTC8564", I2C_NAME_SIZE);
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index 280e9638c0f8..280dd7a45db6 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -500,11 +500,10 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind)
 		return 0;
 	}
 
-	tps = kmalloc(sizeof *tps, GFP_KERNEL);
+	tps = kzalloc(sizeof *tps, GFP_KERNEL);
 	if (!tps)
 		return 0;
 
-	memset(tps, 0, sizeof *tps);
 	init_MUTEX(&tps->lock);
 	INIT_WORK(&tps->work, tps65010_work, tps);
 	tps->irq = -1;
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 89f54a5e8484..276ec42a0717 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -80,10 +80,9 @@ static struct i2c_dev *get_free_i2c_dev(struct i2c_adapter *adap)
 {
 	struct i2c_dev *i2c_dev;
 
-	i2c_dev = kmalloc(sizeof(*i2c_dev), GFP_KERNEL);
+	i2c_dev = kzalloc(sizeof(*i2c_dev), GFP_KERNEL);
 	if (!i2c_dev)
 		return ERR_PTR(-ENOMEM);
-	memset(i2c_dev, 0x00, sizeof(*i2c_dev));
 
 	spin_lock(&i2c_dev_array_lock);
 	if (i2c_dev_array[adap->nr]) {