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driver core: Convert some drivers to CLASS_ATTR_STRING

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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>
This commit is contained in:
Andi Kleen 2010-01-05 12:48:09 +01:00 • committed by Greg Kroah-Hartman
parent 869dfc875e
commit 0933e2d98d
6 changed files with 27 additions and 57 deletions
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13
drivers/misc/phantom.c
View file

@ -497,12 +497,7 @@ static struct pci_driver phantom_pci_driver = {
.resume = phantom_resume
};
static ssize_t phantom_show_version(struct class *cls, struct class_attribute *attr, char *buf)
{
return sprintf(buf, PHANTOM_VERSION "\n");
}
static CLASS_ATTR(version, 0444, phantom_show_version, NULL);
static CLASS_ATTR_STRING(version, 0444, PHANTOM_VERSION);
static int __init phantom_init(void)
{
@ -515,7 +510,7 @@ static int __init phantom_init(void)
printk(KERN_ERR "phantom: can't register phantom class\n");
goto err;
}
retval = class_create_file(phantom_class, &class_attr_version);
retval = class_create_file(phantom_class, &class_attr_version.attr);
if (retval) {
printk(KERN_ERR "phantom: can't create sysfs version file\n");
goto err_class;
@ -541,7 +536,7 @@ static int __init phantom_init(void)
err_unchr:
unregister_chrdev_region(dev, PHANTOM_MAX_MINORS);
err_attr:
class_remove_file(phantom_class, &class_attr_version);
class_remove_file(phantom_class, &class_attr_version.attr);
err_class:
class_destroy(phantom_class);
err:
@ -554,7 +549,7 @@ static void __exit phantom_exit(void)
unregister_chrdev_region(MKDEV(phantom_major, 0), PHANTOM_MAX_MINORS);
class_remove_file(phantom_class, &class_attr_version);
class_remove_file(phantom_class, &class_attr_version.attr);
class_destroy(phantom_class);
pr_debug("phantom: module successfully removed\n");