alsactl: save state - do not call rename for stdio

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 1 insertions, 1 deletions

diff --git a/alsactl/state.c b/alsactl/state.c
index c33f501..e0c6f2e 100644
--- a/alsactl/state.c
+++ b/alsactl/state.c
@@ -1626,7 +1626,7 @@ int save_state(const char *file, const char *cardname)
 	snd_output_close(out);
 	if (err < 0) {
 		error("snd_config_save: %s", snd_strerror(err));
-	} else {
+	} else if (nfile) {
 		err = rename(nfile, file);
 		if (err < 0)
 			error("rename failed: %s (%s)", strerror(-err), file);