2 * file for managing the edac_device class of devices for EDAC
4 * (C) 2007 SoftwareBitMaker (http://www.softwarebitmaker.com)
6 * This file may be distributed under the terms of the
7 * GNU General Public License.
9 * Written Doug Thompson <norsk5@xmission.com>
13 #include <linux/ctype.h>
14 #include <linux/module.h>
16 #include "edac_core.h"
17 #include "edac_module.h"
19 #define EDAC_DEVICE_SYMLINK "device"
21 #define to_edacdev(k) container_of(k, struct edac_device_ctl_info, kobj)
22 #define to_edacdev_attr(a) container_of(a, struct edacdev_attribute, attr)
26 * Set of edac_device_ctl_info attribute store/show functions
30 static ssize_t edac_device_ctl_log_ue_show(struct edac_device_ctl_info
31 *ctl_info, char *data)
33 return sprintf(data, "%u\n", ctl_info->log_ue);
36 static ssize_t edac_device_ctl_log_ue_store(struct edac_device_ctl_info
37 *ctl_info, const char *data,
40 /* if parameter is zero, turn off flag, if non-zero turn on flag */
41 ctl_info->log_ue = (simple_strtoul(data, NULL, 0) != 0);
47 static ssize_t edac_device_ctl_log_ce_show(struct edac_device_ctl_info
48 *ctl_info, char *data)
50 return sprintf(data, "%u\n", ctl_info->log_ce);
53 static ssize_t edac_device_ctl_log_ce_store(struct edac_device_ctl_info
54 *ctl_info, const char *data,
57 /* if parameter is zero, turn off flag, if non-zero turn on flag */
58 ctl_info->log_ce = (simple_strtoul(data, NULL, 0) != 0);
64 static ssize_t edac_device_ctl_panic_on_ue_show(struct edac_device_ctl_info
65 *ctl_info, char *data)
67 return sprintf(data, "%u\n", ctl_info->panic_on_ue);
70 static ssize_t edac_device_ctl_panic_on_ue_store(struct edac_device_ctl_info
71 *ctl_info, const char *data,
74 /* if parameter is zero, turn off flag, if non-zero turn on flag */
75 ctl_info->panic_on_ue = (simple_strtoul(data, NULL, 0) != 0);
80 /* 'poll_msec' show and store functions*/
81 static ssize_t edac_device_ctl_poll_msec_show(struct edac_device_ctl_info
82 *ctl_info, char *data)
84 return sprintf(data, "%u\n", ctl_info->poll_msec);
87 static ssize_t edac_device_ctl_poll_msec_store(struct edac_device_ctl_info
88 *ctl_info, const char *data,
93 /* get the value and enforce that it is non-zero, must be at least
94 * one millisecond for the delay period, between scans
95 * Then cancel last outstanding delay for the work request
98 value = simple_strtoul(data, NULL, 0);
99 edac_device_reset_delay_period(ctl_info, value);
104 /* edac_device_ctl_info specific attribute structure */
105 struct ctl_info_attribute {
106 struct attribute attr;
107 ssize_t(*show) (struct edac_device_ctl_info *, char *);
108 ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t);
111 #define to_ctl_info(k) container_of(k, struct edac_device_ctl_info, kobj)
112 #define to_ctl_info_attr(a) container_of(a,struct ctl_info_attribute,attr)
114 /* Function to 'show' fields from the edac_dev 'ctl_info' structure */
115 static ssize_t edac_dev_ctl_info_show(struct kobject *kobj,
116 struct attribute *attr, char *buffer)
118 struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj);
119 struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr);
121 if (ctl_info_attr->show)
122 return ctl_info_attr->show(edac_dev, buffer);
126 /* Function to 'store' fields into the edac_dev 'ctl_info' structure */
127 static ssize_t edac_dev_ctl_info_store(struct kobject *kobj,
128 struct attribute *attr,
129 const char *buffer, size_t count)
131 struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj);
132 struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr);
134 if (ctl_info_attr->store)
135 return ctl_info_attr->store(edac_dev, buffer, count);
139 /* edac_dev file operations for an 'ctl_info' */
140 static struct sysfs_ops device_ctl_info_ops = {
141 .show = edac_dev_ctl_info_show,
142 .store = edac_dev_ctl_info_store
145 #define CTL_INFO_ATTR(_name,_mode,_show,_store) \
146 static struct ctl_info_attribute attr_ctl_info_##_name = { \
147 .attr = {.name = __stringify(_name), .mode = _mode }, \
152 /* Declare the various ctl_info attributes here and their respective ops */
153 CTL_INFO_ATTR(log_ue, S_IRUGO | S_IWUSR,
154 edac_device_ctl_log_ue_show, edac_device_ctl_log_ue_store);
155 CTL_INFO_ATTR(log_ce, S_IRUGO | S_IWUSR,
156 edac_device_ctl_log_ce_show, edac_device_ctl_log_ce_store);
157 CTL_INFO_ATTR(panic_on_ue, S_IRUGO | S_IWUSR,
158 edac_device_ctl_panic_on_ue_show,
159 edac_device_ctl_panic_on_ue_store);
160 CTL_INFO_ATTR(poll_msec, S_IRUGO | S_IWUSR,
161 edac_device_ctl_poll_msec_show, edac_device_ctl_poll_msec_store);
163 /* Base Attributes of the EDAC_DEVICE ECC object */
164 static struct ctl_info_attribute *device_ctrl_attr[] = {
165 &attr_ctl_info_panic_on_ue,
166 &attr_ctl_info_log_ue,
167 &attr_ctl_info_log_ce,
168 &attr_ctl_info_poll_msec,
173 * edac_device_ctrl_master_release
175 * called when the reference count for the 'main' kobj
176 * for a edac_device control struct reaches zero
178 * Reference count model:
179 * One 'main' kobject for each control structure allocated.
180 * That main kobj is initially set to one AND
181 * the reference count for the EDAC 'core' module is
182 * bumped by one, thus added 'keep in memory' dependency.
184 * Each new internal kobj (in instances and blocks) then
185 * bumps the 'main' kobject.
187 * When they are released their release functions decrement
190 * When the main kobj reaches zero (0) then THIS function
191 * is called which then decrements the EDAC 'core' module.
192 * When the module reference count reaches zero then the
193 * module no longer has dependency on keeping the release
194 * function code in memory and module can be unloaded.
196 * This will support several control objects as well, each
197 * with its own 'main' kobj.
199 static void edac_device_ctrl_master_release(struct kobject *kobj)
201 struct edac_device_ctl_info *edac_dev = to_edacdev(kobj);
203 debugf4("%s() control index=%d\n", __func__, edac_dev->dev_idx);
205 /* decrement the EDAC CORE module ref count */
206 module_put(edac_dev->owner);
208 /* free the control struct containing the 'main' kobj
209 * passed in to this routine
214 /* ktype for the main (master) kobject */
215 static struct kobj_type ktype_device_ctrl = {
216 .release = edac_device_ctrl_master_release,
217 .sysfs_ops = &device_ctl_info_ops,
218 .default_attrs = (struct attribute **)device_ctrl_attr,
222 * edac_device_register_sysfs_main_kobj
224 * perform the high level setup for the new edac_device instance
229 int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev)
231 struct sysdev_class *edac_class;
234 debugf1("%s()\n", __func__);
236 /* get the /sys/devices/system/edac reference */
237 edac_class = edac_get_edac_class();
238 if (edac_class == NULL) {
239 debugf1("%s() no edac_class error\n", __func__);
244 /* Point to the 'edac_class' this instance 'reports' to */
245 edac_dev->edac_class = edac_class;
247 /* Init the devices's kobject */
248 memset(&edac_dev->kobj, 0, sizeof(struct kobject));
249 edac_dev->kobj.ktype = &ktype_device_ctrl;
251 /* set this new device under the edac_class kobject */
252 edac_dev->kobj.parent = &edac_class->kset.kobj;
254 /* generate sysfs "..../edac/<name>" */
255 debugf4("%s() set name of kobject to: %s\n", __func__, edac_dev->name);
256 err = kobject_set_name(&edac_dev->kobj, "%s", edac_dev->name);
260 /* Record which module 'owns' this control structure
261 * and bump the ref count of the module
263 edac_dev->owner = THIS_MODULE;
265 if (!try_module_get(edac_dev->owner)) {
271 err = kobject_register(&edac_dev->kobj);
273 debugf1("%s()Failed to register '.../edac/%s'\n",
274 __func__, edac_dev->name);
278 /* At this point, to 'free' the control struct,
279 * edac_device_unregister_sysfs_main_kobj() must be used
282 debugf4("%s() Registered '.../edac/%s' kobject\n",
283 __func__, edac_dev->name);
287 /* Error exit stack */
289 module_put(edac_dev->owner);
296 * edac_device_unregister_sysfs_main_kobj:
297 * the '..../edac/<name>' kobject
299 void edac_device_unregister_sysfs_main_kobj(
300 struct edac_device_ctl_info *edac_dev)
302 debugf0("%s()\n", __func__);
303 debugf4("%s() name of kobject is: %s\n",
304 __func__, kobject_name(&edac_dev->kobj));
307 * Unregister the edac device's kobject and
308 * allow for reference count to reach 0 at which point
309 * the callback will be called to:
310 * a) module_put() this module
311 * b) 'kfree' the memory
313 kobject_unregister(&edac_dev->kobj);
316 /* edac_dev -> instance information */
319 * Set of low-level instance attribute show functions
321 static ssize_t instance_ue_count_show(struct edac_device_instance *instance,
324 return sprintf(data, "%u\n", instance->counters.ue_count);
327 static ssize_t instance_ce_count_show(struct edac_device_instance *instance,
330 return sprintf(data, "%u\n", instance->counters.ce_count);
333 #define to_instance(k) container_of(k, struct edac_device_instance, kobj)
334 #define to_instance_attr(a) container_of(a,struct instance_attribute,attr)
336 /* DEVICE instance kobject release() function */
337 static void edac_device_ctrl_instance_release(struct kobject *kobj)
339 struct edac_device_instance *instance;
341 debugf1("%s()\n", __func__);
343 /* map from this kobj to the main control struct
344 * and then dec the main kobj count
346 instance = to_instance(kobj);
347 kobject_put(&instance->ctl->kobj);
350 /* instance specific attribute structure */
351 struct instance_attribute {
352 struct attribute attr;
353 ssize_t(*show) (struct edac_device_instance *, char *);
354 ssize_t(*store) (struct edac_device_instance *, const char *, size_t);
357 /* Function to 'show' fields from the edac_dev 'instance' structure */
358 static ssize_t edac_dev_instance_show(struct kobject *kobj,
359 struct attribute *attr, char *buffer)
361 struct edac_device_instance *instance = to_instance(kobj);
362 struct instance_attribute *instance_attr = to_instance_attr(attr);
364 if (instance_attr->show)
365 return instance_attr->show(instance, buffer);
369 /* Function to 'store' fields into the edac_dev 'instance' structure */
370 static ssize_t edac_dev_instance_store(struct kobject *kobj,
371 struct attribute *attr,
372 const char *buffer, size_t count)
374 struct edac_device_instance *instance = to_instance(kobj);
375 struct instance_attribute *instance_attr = to_instance_attr(attr);
377 if (instance_attr->store)
378 return instance_attr->store(instance, buffer, count);
382 /* edac_dev file operations for an 'instance' */
383 static struct sysfs_ops device_instance_ops = {
384 .show = edac_dev_instance_show,
385 .store = edac_dev_instance_store
388 #define INSTANCE_ATTR(_name,_mode,_show,_store) \
389 static struct instance_attribute attr_instance_##_name = { \
390 .attr = {.name = __stringify(_name), .mode = _mode }, \
396 * Define attributes visible for the edac_device instance object
397 * Each contains a pointer to a show and an optional set
398 * function pointer that does the low level output/input
400 INSTANCE_ATTR(ce_count, S_IRUGO, instance_ce_count_show, NULL);
401 INSTANCE_ATTR(ue_count, S_IRUGO, instance_ue_count_show, NULL);
403 /* list of edac_dev 'instance' attributes */
404 static struct instance_attribute *device_instance_attr[] = {
405 &attr_instance_ce_count,
406 &attr_instance_ue_count,
410 /* The 'ktype' for each edac_dev 'instance' */
411 static struct kobj_type ktype_instance_ctrl = {
412 .release = edac_device_ctrl_instance_release,
413 .sysfs_ops = &device_instance_ops,
414 .default_attrs = (struct attribute **)device_instance_attr,
417 /* edac_dev -> instance -> block information */
419 #define to_block(k) container_of(k, struct edac_device_block, kobj)
420 #define to_block_attr(a) \
421 container_of(a, struct edac_dev_sysfs_block_attribute, attr)
424 * Set of low-level block attribute show functions
426 static ssize_t block_ue_count_show(struct kobject *kobj,
427 struct attribute *attr, char *data)
429 struct edac_device_block *block = to_block(kobj);
431 return sprintf(data, "%u\n", block->counters.ue_count);
434 static ssize_t block_ce_count_show(struct kobject *kobj,
435 struct attribute *attr, char *data)
437 struct edac_device_block *block = to_block(kobj);
439 return sprintf(data, "%u\n", block->counters.ce_count);
442 /* DEVICE block kobject release() function */
443 static void edac_device_ctrl_block_release(struct kobject *kobj)
445 struct edac_device_block *block;
447 debugf1("%s()\n", __func__);
449 /* get the container of the kobj */
450 block = to_block(kobj);
452 /* map from 'block kobj' to 'block->instance->controller->main_kobj'
453 * now 'release' the block kobject
455 kobject_put(&block->instance->ctl->kobj);
459 /* Function to 'show' fields from the edac_dev 'block' structure */
460 static ssize_t edac_dev_block_show(struct kobject *kobj,
461 struct attribute *attr, char *buffer)
463 struct edac_dev_sysfs_block_attribute *block_attr =
466 if (block_attr->show)
467 return block_attr->show(kobj, attr, buffer);
471 /* Function to 'store' fields into the edac_dev 'block' structure */
472 static ssize_t edac_dev_block_store(struct kobject *kobj,
473 struct attribute *attr,
474 const char *buffer, size_t count)
476 struct edac_dev_sysfs_block_attribute *block_attr;
478 block_attr = to_block_attr(attr);
480 if (block_attr->store)
481 return block_attr->store(kobj, attr, buffer, count);
485 /* edac_dev file operations for a 'block' */
486 static struct sysfs_ops device_block_ops = {
487 .show = edac_dev_block_show,
488 .store = edac_dev_block_store
491 #define BLOCK_ATTR(_name,_mode,_show,_store) \
492 static struct edac_dev_sysfs_block_attribute attr_block_##_name = { \
493 .attr = {.name = __stringify(_name), .mode = _mode }, \
498 BLOCK_ATTR(ce_count, S_IRUGO, block_ce_count_show, NULL);
499 BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show, NULL);
501 /* list of edac_dev 'block' attributes */
502 static struct edac_dev_sysfs_block_attribute *device_block_attr[] = {
503 &attr_block_ce_count,
504 &attr_block_ue_count,
508 /* The 'ktype' for each edac_dev 'block' */
509 static struct kobj_type ktype_block_ctrl = {
510 .release = edac_device_ctrl_block_release,
511 .sysfs_ops = &device_block_ops,
512 .default_attrs = (struct attribute **)device_block_attr,
515 /* block ctor/dtor code */
518 * edac_device_create_block
520 static int edac_device_create_block(struct edac_device_ctl_info *edac_dev,
521 struct edac_device_instance *instance,
522 struct edac_device_block *block)
526 struct edac_dev_sysfs_block_attribute *sysfs_attrib;
527 struct kobject *main_kobj;
529 debugf4("%s() Instance '%s' inst_p=%p block '%s' block_p=%p\n",
530 __func__, instance->name, instance, block->name, block);
531 debugf4("%s() block kobj=%p block kobj->parent=%p\n",
532 __func__, &block->kobj, &block->kobj.parent);
534 /* init this block's kobject */
535 memset(&block->kobj, 0, sizeof(struct kobject));
536 block->kobj.parent = &instance->kobj;
537 block->kobj.ktype = &ktype_block_ctrl;
539 err = kobject_set_name(&block->kobj, "%s", block->name);
543 /* bump the main kobject's reference count for this controller
544 * and this instance is dependant on the main
546 main_kobj = kobject_get(&edac_dev->kobj);
552 /* Add this block's kobject */
553 err = kobject_register(&block->kobj);
555 debugf1("%s() Failed to register instance '%s'\n",
556 __func__, block->name);
557 kobject_put(main_kobj);
562 /* If there are driver level block attributes, then added them
563 * to the block kobject
565 sysfs_attrib = block->block_attributes;
566 if (sysfs_attrib && block->nr_attribs) {
567 for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
569 debugf4("%s() creating block attrib='%s' "
570 "attrib->%p to kobj=%p\n",
572 sysfs_attrib->attr.name,
573 sysfs_attrib, &block->kobj);
575 /* Create each block_attribute file */
576 err = sysfs_create_file(&block->kobj,
577 &sysfs_attrib->attr);
585 /* Error unwind stack */
587 kobject_unregister(&block->kobj);
594 * edac_device_delete_block(edac_dev,block);
596 static void edac_device_delete_block(struct edac_device_ctl_info *edac_dev,
597 struct edac_device_block *block)
599 struct edac_dev_sysfs_block_attribute *sysfs_attrib;
602 /* if this block has 'attributes' then we need to iterate over the list
603 * and 'remove' the attributes on this block
605 sysfs_attrib = block->block_attributes;
606 if (sysfs_attrib && block->nr_attribs) {
607 for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) {
609 /* remove each block_attrib file */
610 sysfs_remove_file(&block->kobj,
611 (struct attribute *) sysfs_attrib);
615 /* unregister this block's kobject, SEE:
616 * edac_device_ctrl_block_release() callback operation
618 kobject_unregister(&block->kobj);
621 /* instance ctor/dtor code */
624 * edac_device_create_instance
625 * create just one instance of an edac_device 'instance'
627 static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev,
632 struct edac_device_instance *instance;
633 struct kobject *main_kobj;
635 instance = &edac_dev->instances[idx];
637 /* Init the instance's kobject */
638 memset(&instance->kobj, 0, sizeof(struct kobject));
640 /* set this new device under the edac_device main kobject */
641 instance->kobj.parent = &edac_dev->kobj;
642 instance->kobj.ktype = &ktype_instance_ctrl;
643 instance->ctl = edac_dev;
645 err = kobject_set_name(&instance->kobj, "%s", instance->name);
649 /* bump the main kobject's reference count for this controller
650 * and this instance is dependant on the main
652 main_kobj = kobject_get(&edac_dev->kobj);
658 /* Formally register this instance's kobject */
659 err = kobject_register(&instance->kobj);
661 debugf2("%s() Failed to register instance '%s'\n",
662 __func__, instance->name);
663 kobject_put(main_kobj);
667 debugf4("%s() now register '%d' blocks for instance %d\n",
668 __func__, instance->nr_blocks, idx);
670 /* register all blocks of this instance */
671 for (i = 0; i < instance->nr_blocks; i++) {
672 err = edac_device_create_block(edac_dev, instance,
673 &instance->blocks[i]);
675 /* If any fail, remove all previous ones */
676 for (j = 0; j < i; j++)
677 edac_device_delete_block(edac_dev,
678 &instance->blocks[j]);
679 goto err_release_instance_kobj;
683 debugf4("%s() Registered instance %d '%s' kobject\n",
684 __func__, idx, instance->name);
688 /* error unwind stack */
689 err_release_instance_kobj:
690 kobject_unregister(&instance->kobj);
697 * edac_device_remove_instance
698 * remove an edac_device instance
700 static void edac_device_delete_instance(struct edac_device_ctl_info *edac_dev,
703 struct edac_device_instance *instance;
706 instance = &edac_dev->instances[idx];
708 /* unregister all blocks in this instance */
709 for (i = 0; i < instance->nr_blocks; i++)
710 edac_device_delete_block(edac_dev, &instance->blocks[i]);
712 /* unregister this instance's kobject, SEE:
713 * edac_device_ctrl_instance_release() for callback operation
715 kobject_unregister(&instance->kobj);
719 * edac_device_create_instances
720 * create the first level of 'instances' for this device
721 * (ie 'cache' might have 'cache0', 'cache1', 'cache2', etc
723 static int edac_device_create_instances(struct edac_device_ctl_info *edac_dev)
728 debugf0("%s()\n", __func__);
730 /* iterate over creation of the instances */
731 for (i = 0; i < edac_dev->nr_instances; i++) {
732 err = edac_device_create_instance(edac_dev, i);
734 /* unwind previous instances on error */
735 for (j = 0; j < i; j++)
736 edac_device_delete_instance(edac_dev, j);
745 * edac_device_delete_instances(edac_dev);
746 * unregister all the kobjects of the instances
748 static void edac_device_delete_instances(struct edac_device_ctl_info *edac_dev)
752 /* iterate over creation of the instances */
753 for (i = 0; i < edac_dev->nr_instances; i++)
754 edac_device_delete_instance(edac_dev, i);
757 /* edac_dev sysfs ctor/dtor code */
760 * edac_device_add_main_sysfs_attributes
761 * add some attributes to this instance's main kobject
763 static int edac_device_add_main_sysfs_attributes(
764 struct edac_device_ctl_info *edac_dev)
766 struct edac_dev_sysfs_attribute *sysfs_attrib;
769 sysfs_attrib = edac_dev->sysfs_attributes;
771 /* iterate over the array and create an attribute for each
774 while (sysfs_attrib->attr.name != NULL) {
775 err = sysfs_create_file(&edac_dev->kobj,
776 (struct attribute*) sysfs_attrib);
789 * edac_device_remove_main_sysfs_attributes
790 * remove any attributes to this instance's main kobject
792 static void edac_device_remove_main_sysfs_attributes(
793 struct edac_device_ctl_info *edac_dev)
795 struct edac_dev_sysfs_attribute *sysfs_attrib;
797 /* if there are main attributes, defined, remove them. First,
798 * point to the start of the array and iterate over it
799 * removing each attribute listed from this device's instance's kobject
801 sysfs_attrib = edac_dev->sysfs_attributes;
803 while (sysfs_attrib->attr.name != NULL) {
804 sysfs_remove_file(&edac_dev->kobj,
805 (struct attribute *) sysfs_attrib);
812 * edac_device_create_sysfs() Constructor
814 * accept a created edac_device control structure
815 * and 'export' it to sysfs. The 'main' kobj should already have been
816 * created. 'instance' and 'block' kobjects should be registered
817 * along with any 'block' attributes from the low driver. In addition,
818 * the main attributes (if any) are connected to the main kobject of
819 * the control structure.
825 int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev)
828 struct kobject *edac_kobj = &edac_dev->kobj;
830 debugf0("%s() idx=%d\n", __func__, edac_dev->dev_idx);
832 /* go create any main attributes callers wants */
833 err = edac_device_add_main_sysfs_attributes(edac_dev);
835 debugf0("%s() failed to add sysfs attribs\n", __func__);
839 /* create a symlink from the edac device
840 * to the platform 'device' being used for this
842 err = sysfs_create_link(edac_kobj,
843 &edac_dev->dev->kobj, EDAC_DEVICE_SYMLINK);
845 debugf0("%s() sysfs_create_link() returned err= %d\n",
847 goto err_remove_main_attribs;
850 /* Create the first level instance directories
851 * In turn, the nested blocks beneath the instances will
852 * be registered as well
854 err = edac_device_create_instances(edac_dev);
856 debugf0("%s() edac_device_create_instances() "
857 "returned err= %d\n", __func__, err);
858 goto err_remove_link;
862 debugf4("%s() create-instances done, idx=%d\n",
863 __func__, edac_dev->dev_idx);
867 /* Error unwind stack */
869 /* remove the sym link */
870 sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
872 err_remove_main_attribs:
873 edac_device_remove_main_sysfs_attributes(edac_dev);
880 * edac_device_remove_sysfs() destructor
882 * given an edac_device struct, tear down the kobject resources
884 void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev)
886 debugf0("%s()\n", __func__);
888 /* remove any main attributes for this device */
889 edac_device_remove_main_sysfs_attributes(edac_dev);
891 /* remove the device sym link */
892 sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK);
894 /* walk the instance/block kobject tree, deconstructing it */
895 edac_device_delete_instances(edac_dev);