[PATCH] Driver core: Documentation: fix whitespace between parameters

Fix whitespace after comma between parameters.

Signed-off-by: Jan Veldeman <[e-mail]>
Signed-off-by: Domen Puncer <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/filesystems/sysfs.txt

···
 
 It also defines this helper for defining device attributes: 
 
-#define DEVICE_ATTR(_name,_mode,_show,_store)      \
+#define DEVICE_ATTR(_name, _mode, _show, _store)      \
 struct device_attribute dev_attr_##_name = {            \
         .attr = {.name  = __stringify(_name) , .mode   = _mode },      \
         .show   = _show,                                \
···
 
 For example, declaring
 
-static DEVICE_ATTR(foo,0644,show_foo,store_foo);
+static DEVICE_ATTR(foo, 0644, show_foo, store_foo);
 
 is equivalent to doing:
 
···
 show and store methods of the attribute owners. 
 
 struct sysfs_ops {
-        ssize_t (*show)(struct kobject *, struct attribute *,char *);
-        ssize_t (*store)(struct kobject *,struct attribute *,const char *);
+        ssize_t (*show)(struct kobject *, struct attribute *, char *);
+        ssize_t (*store)(struct kobject *, struct attribute *, const char *);
 };
 
 [ Subsystems should have already defined a struct kobj_type as a
···
 
 To illustrate:
 
-#define to_dev_attr(_attr) container_of(_attr,struct device_attribute,attr)
+#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
 #define to_dev(d) container_of(d, struct device, kobj)
 
 static ssize_t
···
         ssize_t ret = 0;
 
         if (dev_attr->show)
-                ret = dev_attr->show(dev,buf);
+                ret = dev_attr->show(dev, buf);
         return ret;
 }
 
···
 
 static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
 {
-        return sprintf(buf,"%s\n",dev->name);
+	return snprintf(buf, PAGE_SIZE, "%s\n", dev->name);
 }
 
 static ssize_t store_name(struct device * dev, const char * buf)
 {
-	sscanf(buf,"%20s",dev->name);
-	return strlen(buf);
+	sscanf(buf, "%20s", dev->name);
+	return strnlen(buf, PAGE_SIZE);
 }
 
-static DEVICE_ATTR(name,S_IRUGO,show_name,store_name);
+static DEVICE_ATTR(name, S_IRUGO, show_name, store_name);
 
 
 (Note that the real implementation doesn't allow userspace to set the 
···
 
 Declaring:
 
-DEVICE_ATTR(_name,_str,_mode,_show,_store);
+DEVICE_ATTR(_name, _str, _mode, _show, _store);
 
 Creation/Removal:
 
···
 
 Declaring:
 
-BUS_ATTR(_name,_mode,_show,_store)
+BUS_ATTR(_name, _mode, _show, _store)
 
 Creation/Removal:
 
···
 
 Declaring:
 
-DRIVER_ATTR(_name,_mode,_show,_store)
+DRIVER_ATTR(_name, _mode, _show, _store)
 
 Creation/Removal: