i386: move bios load error message

Switch to usual goto-end-of-function error handling style.
No functional change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220425135051.551037-2-kraxel@redhat.com>

hw/i386/x86.c

@@ -1120,9 +1120,7 @@ void x86_bios_rom_init(MachineState *ms, const char *default_firmware,
     }
     ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
     if (ret != 0) {
-    bios_error:
-        fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
-        exit(1);
+        goto bios_error;
     }
     g_free(filename);
 
@@ -1143,6 +1141,11 @@ void x86_bios_rom_init(MachineState *ms, const char *default_firmware,
     memory_region_add_subregion(rom_memory,
                                 (uint32_t)(-bios_size),
                                 bios);
+    return;
+
+bios_error:
+    fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
+    exit(1);
 }
 
 bool x86_machine_is_smm_enabled(const X86MachineState *x86ms)