Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/kernel/resource.c b/kernel/resource.c
index 3ff4017..fdd3939 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -262,6 +262,24 @@
EXPORT_SYMBOL(request_resource);
/**
+ * locate_resource - locate an already reserved I/O or memory resource
+ * @root: root resource descriptor
+ * @search: resource descriptor to be located
+ *
+ * Returns pointer to desired resource or NULL if not found.
+ */
+struct resource *locate_resource(struct resource *root, struct resource *search)
+{
+ struct resource *found;
+
+ write_lock(&resource_lock);
+ found = __request_resource(root, search);
+ write_unlock(&resource_lock);
+ return found;
+}
+EXPORT_SYMBOL(locate_resource);
+
+/**
* release_resource - release a previously reserved resource
* @old: resource pointer
*/