firmware: dcdbas: use binary attribute groups

The dcdbas code was "hand rolling" a binary attribute group, which the
driver core now supports automatically.  So remove the "create the files
by hand" logic, and just set the proper field in the attribute group
structure, saving lots of code and headache.

Cc: Doug Warzecha <Douglas_Warzecha@dell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

--

 Doug, I can take this through my driver-core tree if you don't object.

 drivers/firmware/dcdbas.c |   19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

drivers/firmware/dcdbas.c

@@ -535,11 +535,12 @@ static struct attribute *dcdbas_dev_attrs[] = {
 
 static struct attribute_group dcdbas_attr_group = {
 	.attrs = dcdbas_dev_attrs,
+	.bin_attrs = dcdbas_bin_attrs,
 };
 
 static int dcdbas_probe(struct platform_device *dev)
 {
-	int i, error;
+	int error;
 
 	host_control_action = HC_ACTION_NONE;
 	host_control_smi_type = HC_SMITYPE_NONE;
@@ -555,18 +556,6 @@ static int dcdbas_probe(struct platform_device *dev)
 	if (error)
 		return error;
 
-	for (i = 0; dcdbas_bin_attrs[i]; i++) {
-		error = sysfs_create_bin_file(&dev->dev.kobj,
-					      dcdbas_bin_attrs[i]);
-		if (error) {
-			while (--i >= 0)
-				sysfs_remove_bin_file(&dev->dev.kobj,
-						      dcdbas_bin_attrs[i]);
-			sysfs_remove_group(&dev->dev.kobj, &dcdbas_attr_group);
-			return error;
-		}
-	}
-
 	register_reboot_notifier(&dcdbas_reboot_nb);
 
 	dev_info(&dev->dev, "%s (version %s)\n",
@@ -577,11 +566,7 @@ static int dcdbas_probe(struct platform_device *dev)
 
 static int dcdbas_remove(struct platform_device *dev)
 {
-	int i;
-
 	unregister_reboot_notifier(&dcdbas_reboot_nb);
-	for (i = 0; dcdbas_bin_attrs[i]; i++)
-		sysfs_remove_bin_file(&dev->dev.kobj, dcdbas_bin_attrs[i]);
 	sysfs_remove_group(&dev->dev.kobj, &dcdbas_attr_group);
 
 	return 0;