From: Chunyan Liu <cyliu@suse.com>
Date: Thu, 5 Jun 2014 09:20:50 +0000 (+0800)
Subject: QemuOpts: check NULL input for qemu_opts_del
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~775^2~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4782183da39ec988b8290bbc0289c9f50ba33ea4;p=sdk%2Femulator%2Fqemu.git

QemuOpts: check NULL input for qemu_opts_del

To simplify later using of qemu_opts_del, accept NULL input.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Leandro Dorileo <l@dorileo.org>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/util/qemu-option.c b/util/qemu-option.c
index 6acfb0e..40e1ff3 100644
--- 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)