Use error_fatal to simplify obvious fatal errors (again)

Add a slight improvement of the Coccinelle semantic patch from commit
007b06578ab, and use it to clean up.  It leaves dead Error * variables
behind, cleaned up manually.

Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Eric Blake <eblake@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20181017082702.5581-3-armbru@redhat.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/vl.c b/vl.c
index 61305b5..db83cfe 100644
--- a/vl.c
+++ b/vl.c
@@ -2002,15 +2002,10 @@ static void select_vgahw(const char *p)
 
 static void parse_display_qapi(const char *optarg)
 {
-    Error *err = NULL;
     DisplayOptions *opts;
     Visitor *v;
 
-    v = qobject_input_visitor_new_str(optarg, "type", &err);
-    if (!v) {
-        error_report_err(err);
-        exit(1);
-    }
+    v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
 
     visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
     QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);