vl: Use exit(1) when requested VGA interface is unavailable

Instead of using exit(0), use exit(1) when an unavailable VGA
interface is used in the command-line to indicate it's an error.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

diff --git a/vl.c b/vl.c
index a43a3bad182a6cedce6058f35012189df092859d..edfb5b97f0f90f96742d3ec2c8a764f05bf4cad8 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -2027,28 +2027,28 @@ static void select_vgahw (const char *p)
             vga_interface_type = VGA_STD;
         } else {
             error_report("standard VGA not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "cirrus", &opts)) {
         if (cirrus_vga_available()) {
             vga_interface_type = VGA_CIRRUS;
         } else {
             error_report("Cirrus VGA not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "vmware", &opts)) {
         if (vmware_vga_available()) {
             vga_interface_type = VGA_VMWARE;
         } else {
             error_report("VMWare SVGA not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "virtio", &opts)) {
         if (virtio_vga_available()) {
             vga_interface_type = VGA_VIRTIO;
         } else {
             error_report("Virtio VGA not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "xenfb", &opts)) {
         vga_interface_type = VGA_XENFB;
@@ -2057,21 +2057,21 @@ static void select_vgahw (const char *p)
             vga_interface_type = VGA_QXL;
         } else {
             error_report("QXL VGA not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "tcx", &opts)) {
         if (tcx_vga_available()) {
             vga_interface_type = VGA_TCX;
         } else {
             error_report("TCX framebuffer not available");
-            exit(0);
+            exit(1);
         }
     } else if (strstart(p, "cg3", &opts)) {
         if (cg3_vga_available()) {
             vga_interface_type = VGA_CG3;
         } else {
             error_report("CG3 framebuffer not available");
-            exit(0);
+            exit(1);
         }
     } else if (!strstart(p, "none", &opts)) {
     invalid_vga: