driver core: move the deferred probe pointer into the private area

Nothing outside of the driver core needs to get to the deferred probe
pointer, so move it inside the private area of 'struct device' so no one
tries to mess around with it.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 442b764..9fa888e 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -45,7 +45,7 @@
  * retry them.
  *
  * The deferred_probe_mutex must be held any time the deferred_probe_*_list
- * of the (struct device*)->deferred_probe pointers are manipulated
+ * of the (struct device*)->p->deferred_probe pointers are manipulated
  */
 static DEFINE_MUTEX(deferred_probe_mutex);
 static LIST_HEAD(deferred_probe_pending_list);
@@ -58,6 +58,7 @@ static struct workqueue_struct *deferred_wq;
 static void deferred_probe_work_func(struct work_struct *work)
 {
 	struct device *dev;
+	struct device_private *private;
 	/*
 	 * This block processes every device in the deferred 'active' list.
 	 * Each device is removed from the active list and passed to
@@ -72,9 +73,10 @@ static void deferred_probe_work_func(struct work_struct *work)
 	 */
 	mutex_lock(&deferred_probe_mutex);
 	while (!list_empty(&deferred_probe_active_list)) {
-		dev = list_first_entry(&deferred_probe_active_list,
-					typeof(*dev), deferred_probe);
-		list_del_init(&dev->deferred_probe);
+		private = list_first_entry(&deferred_probe_active_list,
+					typeof(*dev->p), deferred_probe);
+		dev = private->device;
+		list_del_init(&private->deferred_probe);
 
 		get_device(dev);
 
@@ -94,9 +96,9 @@ static DECLARE_WORK(deferred_probe_work, deferred_probe_work_func);
 static void driver_deferred_probe_add(struct device *dev)
 {
 	mutex_lock(&deferred_probe_mutex);
-	if (list_empty(&dev->deferred_probe)) {
+	if (list_empty(&dev->p->deferred_probe)) {
 		dev_dbg(dev, "Added to deferred list\n");
-		list_add(&dev->deferred_probe, &deferred_probe_pending_list);
+		list_add(&dev->p->deferred_probe, &deferred_probe_pending_list);
 	}
 	mutex_unlock(&deferred_probe_mutex);
 }
@@ -104,9 +106,9 @@ static void driver_deferred_probe_add(struct device *dev)
 void driver_deferred_probe_del(struct device *dev)
 {
 	mutex_lock(&deferred_probe_mutex);
-	if (!list_empty(&dev->deferred_probe)) {
+	if (!list_empty(&dev->p->deferred_probe)) {
 		dev_dbg(dev, "Removed from deferred list\n");
-		list_del_init(&dev->deferred_probe);
+		list_del_init(&dev->p->deferred_probe);
 	}
 	mutex_unlock(&deferred_probe_mutex);
 }