diskutil: make it clear that parent != NULL for json output

[fio.git] / diskutil.c

diff --git a/diskutil.c b/diskutil.c
index d97c5ca15e183c364d58bbac94a880396d67bb8a..3ee5c6c871b4d4545ff0f9f34b0a4ef81e89e234 100644 (file)
--- a/diskutil.c
+++ b/diskutil.c
@@ -6,6 +6,7 @@
 #include <dirent.h>
 #include <libgen.h>
 #include <math.h>
+#include <assert.h>
 
 #include "fio.h"
 #include "smalloc.h"
@@ -686,12 +687,15 @@ void show_disk_util(int terse, struct json_object *parent)
                return;
        }
 
-       if (!terse && !parent)
+       if (output_format == FIO_OUTPUT_JSON)
+               assert(parent);
+
+       if (!terse && output_format != FIO_OUTPUT_JSON)
                log_info("\nDisk stats (read/write):\n");
 
-       if (output_format == FIO_OUTPUT_JSON) {
+       if (output_format == FIO_OUTPUT_JSON)
                json_object_add_disk_utils(parent, &disk_list);
-       } else
+       else
                flist_for_each(entry, &disk_list) {
                        du = flist_entry(entry, struct disk_util, list);