drivers/edac: add device sysfs attributes
Added new controls for the edac_device and edac_mc sysfs folder.
These can be initialized by the low level driver to provide misc
controls into the low level driver for its use
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 849d569..32b2a8e 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c
@@ -9,8 +9,6 @@
*
*/
-#include <linux/module.h>
-#include <linux/sysdev.h>
#include <linux/ctype.h>
#include "edac_core.h"
@@ -622,6 +620,34 @@
/******************* edac_dev sysfs ctor/dtor code *************/
/*
+ * edac_device_add_sysfs_attributes
+ * add some attributes to this instance's main kobject
+ */
+static int edac_device_add_sysfs_attributes(
+ struct edac_device_ctl_info *edac_dev)
+{
+ int err;
+ struct edac_dev_sysfs_attribute *sysfs_attrib;
+
+ /* point to the start of the array and iterate over it
+ * adding each attribute listed to this mci instance's kobject
+ */
+ sysfs_attrib = edac_dev->sysfs_attributes;
+
+ while (sysfs_attrib->attr.name != NULL) {
+ err = sysfs_create_file(&edac_dev->kobj,
+ (struct attribute*) sysfs_attrib);
+ if (err) {
+ return err;
+ }
+
+ sysfs_attrib++;
+ }
+
+ return 0;
+}
+
+/*
* edac_device_create_sysfs() Constructor
*
* Create a new edac_device kobject instance,
@@ -642,6 +668,18 @@
debugf0("%s() idx=%d\n", __func__, edac_dev->dev_idx);
+ /* If the low level driver requests some sysfs entries
+ * then go create them here
+ */
+ if (edac_dev->sysfs_attributes != NULL) {
+ err = edac_device_add_sysfs_attributes(edac_dev);
+ if (err) {
+ debugf0("%s() failed to add sysfs attribs\n",
+ __func__);
+ goto err_unreg_object;
+ }
+ }
+
/* create a symlink from the edac device
* to the platform 'device' being used for this
*/
@@ -650,7 +688,7 @@
if (err) {
debugf0("%s() sysfs_create_link() returned err= %d\n",
__func__, err);
- return err;
+ goto err_unreg_object;
}
debugf0("%s() calling create-instances, idx=%d\n",
@@ -659,14 +697,17 @@
/* Create the first level instance directories */
err = edac_device_create_instances(edac_dev);
if (err) {
- goto error0;
+ goto err_remove_link;
}
return 0;
/* Error unwind stack */
+err_remove_link:
+ /* remove the sym link */
+ sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
- error0:
+err_unreg_object:
edac_device_unregister_main_kobj(edac_dev);
return err;