[PATCH] drivers/base/*: use kzalloc instead of kmalloc+memset

Fixes a bunch of memset bugs too.

Signed-off-by: Lion Vollnhals <webmaster@schiggl.de>
Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/base/attribute_container.c

@@ -152,12 +152,13 @@ attribute_container_add_device(struct device *dev,
 
 		if (!cont->match(cont, dev))
 			continue;
-		ic = kmalloc(sizeof(struct internal_container), GFP_KERNEL);
+
+		ic = kzalloc(sizeof(*ic), GFP_KERNEL);
 		if (!ic) {
 			dev_printk(KERN_ERR, dev, "failed to allocate class container\n");
 			continue;
 		}
-		memset(ic, 0, sizeof(struct internal_container));
+
 		ic->cont = cont;
 		class_device_initialize(&ic->classdev);
 		ic->classdev.dev = get_device(dev);

drivers/base/class.c

@@ -189,12 +189,11 @@ struct class *class_create(struct module *owner, char *name)
 	struct class *cls;
 	int retval;
 
-	cls = kmalloc(sizeof(struct class), GFP_KERNEL);
+	cls = kzalloc(sizeof(*cls), GFP_KERNEL);
 	if (!cls) {
 		retval = -ENOMEM;
 		goto error;
 	}
-	memset(cls, 0x00, sizeof(struct class));
 
 	cls->name = name;
 	cls->owner = owner;
@@ -500,13 +499,13 @@ int class_device_add(struct class_device *class_dev)
 	/* add the needed attributes to this device */
 	if (MAJOR(class_dev->devt)) {
 		struct class_device_attribute *attr;
-		attr = kmalloc(sizeof(*attr), GFP_KERNEL);
+		attr = kzalloc(sizeof(*attr), GFP_KERNEL);
 		if (!attr) {
 			error = -ENOMEM;
 			kobject_del(&class_dev->kobj);
 			goto register_done;
 		}
-		memset(attr, sizeof(*attr), 0x00);
+
 		attr->attr.name = "dev";
 		attr->attr.mode = S_IRUGO;
 		attr->attr.owner = parent->owner;
@@ -577,12 +576,11 @@ struct class_device *class_device_create(struct class *cls, dev_t devt,
 	if (cls == NULL || IS_ERR(cls))
 		goto error;
 
-	class_dev = kmalloc(sizeof(struct class_device), GFP_KERNEL);
+	class_dev = kzalloc(sizeof(*class_dev), GFP_KERNEL);
 	if (!class_dev) {
 		retval = -ENOMEM;
 		goto error;
 	}
-	memset(class_dev, 0x00, sizeof(struct class_device));
 
 	class_dev->devt = devt;
 	class_dev->dev = device;

drivers/base/firmware_class.c

@@ -301,9 +301,9 @@ fw_register_class_device(struct class_device **class_dev_p,
 			 const char *fw_name, struct device *device)
 {
 	int retval;
-	struct firmware_priv *fw_priv = kmalloc(sizeof (struct firmware_priv),
+	struct firmware_priv *fw_priv = kzalloc(sizeof(*fw_priv),
 						GFP_KERNEL);
-	struct class_device *class_dev = kmalloc(sizeof (struct class_device),
+	struct class_device *class_dev = kzalloc(sizeof(*class_dev),
 						 GFP_KERNEL);
 
 	*class_dev_p = NULL;
@@ -313,8 +313,6 @@ fw_register_class_device(struct class_device **class_dev_p,
 		retval = -ENOMEM;
 		goto error_kfree;
 	}
-	memset(fw_priv, 0, sizeof (*fw_priv));
-	memset(class_dev, 0, sizeof (*class_dev));
 
 	init_completion(&fw_priv->completion);
 	fw_priv->attr_data = firmware_attr_data_tmpl;
@@ -402,14 +400,13 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 	if (!firmware_p)
 		return -EINVAL;
 
-	*firmware_p = firmware = kmalloc(sizeof (struct firmware), GFP_KERNEL);
+	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
 	if (!firmware) {
 		printk(KERN_ERR "%s: kmalloc(struct firmware) failed\n",
 		       __FUNCTION__);
 		retval = -ENOMEM;
 		goto out;
 	}
-	memset(firmware, 0, sizeof (*firmware));
 
 	retval = fw_setup_class_device(firmware, &class_dev, name, device,
 		hotplug);

drivers/base/map.c

@@ -135,7 +135,7 @@ retry:
 struct kobj_map *kobj_map_init(kobj_probe_t *base_probe, struct semaphore *sem)
 {
 	struct kobj_map *p = kmalloc(sizeof(struct kobj_map), GFP_KERNEL);
-	struct probe *base = kmalloc(sizeof(struct probe), GFP_KERNEL);
+	struct probe *base = kzalloc(sizeof(*base), GFP_KERNEL);
 	int i;
 
 	if ((p == NULL) || (base == NULL)) {
@@ -144,7 +144,6 @@ struct kobj_map *kobj_map_init(kobj_probe_t *base_probe, struct semaphore *sem)
 		return NULL;
 	}
 
-	memset(base, 0, sizeof(struct probe));
 	base->dev = 1;
 	base->range = ~0;
 	base->get = base_probe;

drivers/base/platform.c

@@ -225,13 +225,12 @@ struct platform_device *platform_device_register_simple(char *name, unsigned int
 	struct platform_object *pobj;
 	int retval;
 
-	pobj = kmalloc(sizeof(struct platform_object) + sizeof(struct resource) * num, GFP_KERNEL);
+	pobj = kzalloc(sizeof(*pobj) + sizeof(struct resource) * num, GFP_KERNEL);
 	if (!pobj) {
 		retval = -ENOMEM;
 		goto error;
 	}
 
-	memset(pobj, 0, sizeof(*pobj));
 	pobj->pdev.name = name;
 	pobj->pdev.id = id;
 	pobj->pdev.dev.release = platform_device_release_simple;