drivers/dca/dca-core.c: use list_move() instead of list_del()/list_add() combination

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c
index c461eda..4abd089 100644
--- a/drivers/dca/dca-core.c
+++ b/drivers/dca/dca-core.c
@@ -111,10 +111,8 @@
 	/* at this point only one domain in the list is expected */
 	domain = list_first_entry(&dca_domains, struct dca_domain, node);
 
-	list_for_each_entry_safe(dca, _dca, &domain->dca_providers, node) {
-		list_del(&dca->node);
-		list_add(&dca->node, &unregistered_providers);
-	}
+	list_for_each_entry_safe(dca, _dca, &domain->dca_providers, node)
+		list_move(&dca->node, &unregistered_providers);
 
 	dca_free_domain(domain);