qdev: Fix crash on -device '?=x'

Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-08 11:00:38 +01:00 · 2011-11-08 11:00:38 +01:00 · 542379f426
commit 542379f426
parent 235e510cfd
1 changed files with 1 additions and 1 deletions
--- a/hw/qdev.c
+++ b/hw/qdev.c
@ -186,7 +186,7 @@ int qdev_device_help(QemuOpts *opts)
        return 1;
    }

-    if (!qemu_opt_get(opts, "?")) {
+    if (!driver || !qemu_opt_get(opts, "?")) {
        return 0;
    }