mvp: fixed default device detection

The check "open()!=0" is wrong, you have to write "open()>=0", because
-1 means error, and 0 is a valid file handle.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/output/mvp_plugin.c b/src/output/mvp_plugin.c
index b9004029b..976a2c2b5 100644
--- a/src/output/mvp_plugin.c
+++ b/src/output/mvp_plugin.c
@@ -114,7 +114,7 @@ mvp_output_test_default_device(void)
 
 	fd = open("/dev/adec_pcm", O_WRONLY);
 
-	if (fd) {
+	if (fd >= 0) {
 		close(fd);
 		return true;
 	}