kernel/events: Fix wait_for_objects.

In the preceding commit, I missed that "events" was cleared
inside the select loop, making a use later on useless.

Now we don't clear it in the loop, but wait till the end
to do so. (Considering we return without clearing it in
case of out-of-memory or other problems, this may not
even be necessary, but it at least preserves existing
behavior.)

src/system/kernel/events/wait_for_objects.cpp

@@ -682,7 +682,6 @@ common_wait_for_objects(object_wait_info* infos, int numInfos, uint32 flags,
 		infos[i].events |= B_EVENT_INVALID | B_EVENT_ERROR | B_EVENT_DISCONNECTED;
 		sync->set[i].selected_events = infos[i].events;
 		sync->set[i].events = 0;
-		infos[i].events = 0;
 
 		if (select_object(type, object, sync->set + i, kernel) != B_OK) {
 			// If the object returned events as well as an error, ignore the error.
@@ -705,7 +704,6 @@ common_wait_for_objects(object_wait_info* infos, int numInfos, uint32 flags,
 
 	for (int i = 0; i < numInfos; i++) {
 		uint16 type = infos[i].type;
-
 		if ((infos[i].events & B_EVENT_INVALID) == 0)
 			deselect_object(type, infos[i].object, sync->set + i, kernel);
 	}
@@ -722,6 +720,8 @@ common_wait_for_objects(object_wait_info* infos, int numInfos, uint32 flags,
 	} else {
 		// B_INTERRUPTED, B_TIMED_OUT, and B_WOULD_BLOCK
 		count = status;
+		for (int i = 0; i < numInfos; i++)
+			infos[i].events = 0;
 	}
 
 	put_select_sync(sync);