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path: root/drivers/edac/edac_mc_sysfs.c
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Diffstat (limited to 'drivers/edac/edac_mc_sysfs.c')
-rw-r--r--drivers/edac/edac_mc_sysfs.c82
1 files changed, 46 insertions, 36 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index a4135860149..dce61f7ba38 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -631,9 +631,6 @@ static void edac_mci_control_release(struct kobject *kobj)
/* decrement the module ref count */
module_put(mci->owner);
-
- /* free the mci instance memory here */
- kfree(mci);
}
static struct kobj_type ktype_mci = {
@@ -713,6 +710,8 @@ fail_out:
*/
void edac_mc_unregister_sysfs_main_kobj(struct mem_ctl_info *mci)
{
+ debugf1("%s()\n", __func__);
+
/* delete the kobj from the mc_kset */
kobject_put(&mci->edac_mci_kobj);
}
@@ -760,8 +759,6 @@ static void edac_inst_grp_release(struct kobject *kobj)
grp = container_of(kobj, struct mcidev_sysfs_group_kobj, kobj);
mci = grp->mci;
-
- kobject_put(&mci->edac_mci_kobj);
}
/* Intermediate show/store table */
@@ -784,7 +781,7 @@ static struct kobj_type ktype_inst_grp = {
* object tree.
*/
static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
- struct mcidev_sysfs_attribute *sysfs_attrib,
+ const struct mcidev_sysfs_attribute *sysfs_attrib,
struct kobject *kobj)
{
int err;
@@ -792,6 +789,7 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
debugf1("%s()\n", __func__);
while (sysfs_attrib) {
+ debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
if (sysfs_attrib->grp) {
struct mcidev_sysfs_group_kobj *grp_kobj;
@@ -799,10 +797,9 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
if (!grp_kobj)
return -ENOMEM;
- list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
-
grp_kobj->grp = sysfs_attrib->grp;
grp_kobj->mci = mci;
+ list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
debugf0("%s() grp %s, mci %p\n", __func__,
sysfs_attrib->grp->name, mci);
@@ -811,26 +808,28 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
&ktype_inst_grp,
&mci->edac_mci_kobj,
sysfs_attrib->grp->name);
- if (err)
+ if (err < 0) {
+ printk(KERN_ERR "kobject_init_and_add failed: %d\n", err);
return err;
-
+ }
err = edac_create_mci_instance_attributes(mci,
grp_kobj->grp->mcidev_attr,
&grp_kobj->kobj);
- if (err)
+ if (err < 0)
return err;
} else if (sysfs_attrib->attr.name) {
debugf0("%s() file %s\n", __func__,
sysfs_attrib->attr.name);
err = sysfs_create_file(kobj, &sysfs_attrib->attr);
+ if (err < 0) {
+ printk(KERN_ERR "sysfs_create_file failed: %d\n", err);
+ return err;
+ }
} else
break;
- if (err) {
- return err;
- }
sysfs_attrib++;
}
@@ -843,7 +842,7 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
* directory of this mci instance.
*/
static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
- struct mcidev_sysfs_attribute *sysfs_attrib,
+ const struct mcidev_sysfs_attribute *sysfs_attrib,
struct kobject *kobj, int count)
{
struct mcidev_sysfs_group_kobj *grp_kobj, *tmp;
@@ -855,13 +854,24 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
* Remove first all the atributes
*/
while (sysfs_attrib) {
+ debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
if (sysfs_attrib->grp) {
- list_for_each_entry(grp_kobj, &mci->grp_kobj_list,
- list)
- if (grp_kobj->grp == sysfs_attrib->grp)
+ debugf1("%s() seeking for group %s\n",
+ __func__, sysfs_attrib->grp->name);
+ list_for_each_entry(grp_kobj,
+ &mci->grp_kobj_list, list) {
+ debugf1("%s() grp_kobj->grp = %p\n",__func__, grp_kobj->grp);
+ if (grp_kobj->grp == sysfs_attrib->grp) {
edac_remove_mci_instance_attributes(mci,
grp_kobj->grp->mcidev_attr,
&grp_kobj->kobj, count + 1);
+ debugf0("%s() group %s\n", __func__,
+ sysfs_attrib->grp->name);
+ kobject_put(&grp_kobj->kobj);
+ }
+ }
+ debugf1("%s() end of seeking for group %s\n",
+ __func__, sysfs_attrib->grp->name);
} else if (sysfs_attrib->attr.name) {
debugf0("%s() file %s\n", __func__,
sysfs_attrib->attr.name);
@@ -871,15 +881,14 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
sysfs_attrib++;
}
- /*
- * Now that all attributes got removed, it is save to remove all groups
- */
- if (!count)
- list_for_each_entry_safe(grp_kobj, tmp, &mci->grp_kobj_list,
- list) {
- debugf0("%s() grp %s\n", __func__, grp_kobj->grp->name);
- kobject_put(&grp_kobj->kobj);
- }
+ /* Remove the group objects */
+ if (count)
+ return;
+ list_for_each_entry_safe(grp_kobj, tmp,
+ &mci->grp_kobj_list, list) {
+ list_del(&grp_kobj->list);
+ kfree(grp_kobj);
+ }
}
@@ -971,6 +980,7 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
debugf0("%s()\n", __func__);
/* remove all csrow kobjects */
+ debugf0("%s() unregister this mci kobj\n", __func__);
for (i = 0; i < mci->nr_csrows; i++) {
if (mci->csrows[i].nr_pages > 0) {
debugf0("%s() unreg csrow-%d\n", __func__, i);
@@ -978,20 +988,20 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
}
}
- debugf0("%s() remove_link\n", __func__);
+ /* remove this mci instance's attribtes */
+ if (mci->mc_driver_sysfs_attributes) {
+ debugf0("%s() unregister mci private attributes\n", __func__);
+ edac_remove_mci_instance_attributes(mci,
+ mci->mc_driver_sysfs_attributes,
+ &mci->edac_mci_kobj, 0);
+ }
/* remove the symlink */
+ debugf0("%s() remove_link\n", __func__);
sysfs_remove_link(&mci->edac_mci_kobj, EDAC_DEVICE_SYMLINK);
- debugf0("%s() remove_mci_instance\n", __func__);
-
- /* remove this mci instance's attribtes */
- edac_remove_mci_instance_attributes(mci,
- mci->mc_driver_sysfs_attributes,
- &mci->edac_mci_kobj, 0);
- debugf0("%s() unregister this mci kobj\n", __func__);
-
/* unregister this instance's kobject */
+ debugf0("%s() remove_mci_instance\n", __func__);
kobject_put(&mci->edac_mci_kobj);
}