s390/crashdump: use list_first_entry_or_null

The combo of list_empty() check and return list_first_entry() can be replaced with list_first_entry_or_null(). Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
josf · Sep 20, 2016 · f296190 · f296190
1 parent 9078a54
commit f296190
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
@@ -71,9 +71,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
  */
 struct save_area * __init save_area_boot_cpu(void)
 {
-	if (list_empty(&dump_save_areas))
-		return NULL;
-	return list_first_entry(&dump_save_areas, struct save_area, list);
+	return list_first_entry_or_null(&dump_save_areas, struct save_area, list);
 }
 
 /*