From 478835401ecf44391a3b32cfa178b1d56bde1c11 Mon Sep 17 00:00:00 2001
From: Kevin Lange <kevin.lange@dakko.us>
Date: Tue, 2 Jun 2015 22:24:41 -0700
Subject: [PATCH] pcspkr piano should exit if it can't open spkr [ci skip]

---
 userspace/extra/piano.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/userspace/extra/piano.c b/userspace/extra/piano.c
index 48ff1b98..9ff7cfaa 100644
--- a/userspace/extra/piano.c
+++ b/userspace/extra/piano.c
@@ -39,6 +39,7 @@ int main(int argc, char * argv[]) {
 	spkr = open("/dev/spkr", O_WRONLY);
 	if (spkr == -1) {
 		fprintf(stderr, "%s: could not open speaker\n", argv[0]);
+		return 1;
 	}
 
 	set_unbuffered();