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drivers/edac: add device sysfs attributes

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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>
This commit is contained in:
Douglas Thompson
2007-07-19 01:50:10 -07:00
committed by Linus Torvalds
parent 456a2f9552
commit 42a8e397a8
3 changed files with 141 additions and 22 deletions
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51
drivers/edac/edac_device_sysfs.c
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@ -9,8 +9,6 @@
*
*/
#include <linux/module.h>
#include <linux/sysdev.h>
#include <linux/ctype.h>
#include "edac_core.h"
@ -621,6 +619,34 @@ static void edac_device_delete_instances(struct edac_device_ctl_info *edac_dev)
/******************* 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
*
@ -642,6 +668,18 @@ int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev)
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 @@ int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev)
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 @@ int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev)
/* 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;