driver core: Convert some drivers to CLASS_ATTR_STRING
Convert some drivers who export a single string as class attribute
to the new class_attr_string functions. This removes redundant
code all over.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index 7d93f50..7ebecc9 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -770,15 +770,8 @@
.id_table = id_table,
};
-static ssize_t version_show(struct class *dev,
- struct class_attribute *attr,
- char *buf)
-{
- return sprintf(buf, ASUS_OLED_UNDERSCORE_NAME " %s\n",
- ASUS_OLED_VERSION);
-}
-
-static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
+static CLASS_ATTR_STRING(version, S_IRUGO,
+ ASUS_OLED_UNDERSCORE_NAME " " ASUS_OLED_VERSION);
static int __init asus_oled_init(void)
{
@@ -790,7 +783,7 @@
return PTR_ERR(oled_class);
}
- retval = class_create_file(oled_class, &class_attr_version);
+ retval = class_create_file(oled_class, &class_attr_version.attr);
if (retval) {
err("Error creating class version file");
goto error;
@@ -812,7 +805,7 @@
static void __exit asus_oled_exit(void)
{
- class_remove_file(oled_class, &class_attr_version);
+ class_remove_file(oled_class, &class_attr_version.attr);
class_destroy(oled_class);
usb_deregister(&oled_driver);