1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 524bf96c289f..2360adb7a58f 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -309,6 +309,10 @@ EXPORT_SYMBOL_GPL(devres_remove);
  * which @match returns 1.  If @match is NULL, it's considered to
  * match all.  If found, the resource is removed atomically and freed.
  *
+ * Note that the release function for the resource will not be called,
+ * only the devres-allocated data will be freed.  The caller becomes
+ * responsible for freeing any other data.
+ *
  * RETURNS:
  * 0 if devres is found and freed, -ENOENT if not found.
  */
@@ -326,6 +330,37 @@ int devres_destroy(struct device *dev, dr_release_t release,
 }
 EXPORT_SYMBOL_GPL(devres_destroy);
 
+
+/**
+ * devres_release - Find a device resource and destroy it, calling release
+ * @dev: Device to find resource from
+ * @release: Look for resources associated with this release function
+ * @match: Match function (optional)
+ * @match_data: Data for the match function
+ *
+ * Find the latest devres of @dev associated with @release and for
+ * which @match returns 1.  If @match is NULL, it's considered to
+ * match all.  If found, the resource is removed atomically, the
+ * release function called and the resource freed.
+ *
+ * RETURNS:
+ * 0 if devres is found and freed, -ENOENT if not found.
+ */
+int devres_release(struct device *dev, dr_release_t release,
+                   dr_match_t match, void *match_data)
+{
+        void *res;
+
+        res = devres_remove(dev, release, match, match_data);
+        if (unlikely(!res))
+                return -ENOENT;
+
+        (*release)(dev, res);
+        devres_free(res);
+        return 0;
+}
+EXPORT_SYMBOL_GPL(devres_release);
+
 static int remove_nodes(struct device *dev,
                         struct list_head *first, struct list_head *end,
                         struct list_head *todo)