x86, mrst: Check platform_device_register() return code

platform_device_register() may fail, if so propagate the return
code from mrst_device_create().

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
LKML-Reference: <1290104207-31279-1-git-send-email-segoon@openwall.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/platform/mrst/vrtc.c

@@ -159,8 +159,7 @@ static int __init mrst_device_create(void)
 	vrtc_resources[1].start = sfi_mrtc_array[0].irq;
 	vrtc_resources[1].end = sfi_mrtc_array[0].irq;
 
-	platform_device_register(&vrtc_device);
-	return 0;
+	return platform_device_register(&vrtc_device);
 }
 
 module_init(mrst_device_create);