alsactl: save state - do not call rename for stdio

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

diff --git a/alsactl/state.c b/alsactl/state.c
index c33f5017999f5c1e42a733dc8f43d4d11a5a81a5..e0c6f2e02e9bcd686ff7a7ee7480d59f4e5ce863 100644 (file)
--- 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);