QemuOpts: check NULL input for qemu_opts_del

To simplify later using of qemu_opts_del, accept NULL input. Reviewed-by: Stefan Hajnoczi <[email protected]> Reviewed-by: Eric Blake <[email protected]> Reviewed-by: Leandro Dorileo <[email protected]> Signed-off-by: Chunyan Liu <[email protected]> Signed-off-by: Stefan Hajnoczi <[email protected]>
mslovy · Jun 16, 2014 · 4782183 · 4782183
1 parent a1097a2
commit 4782183
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/util/qemu-option.c b/util/qemu-option.c
@@ -1011,6 +1011,10 @@ void qemu_opts_del(QemuOpts *opts)
 {
     QemuOpt *opt;
 
+    if (opts == NULL) {
+        return;
+    }
+
     for (;;) {
         opt = QTAILQ_FIRST(&opts->head);
         if (opt == NULL)