topology: fix src/mixer/mixer.c return value warning

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

diff --git a/src/mixer/mixer.c b/src/mixer/mixer.c
index d6456278953b64b0ce02e3a4f5a4135886e5d2b0..7dd5c47ad411c3e9b261cab6241beef460bd000d 100644 (file)
--- a/src/mixer/mixer.c
+++ b/src/mixer/mixer.c
@@ -482,7 +482,6 @@ int snd_mixer_elem_remove(snd_mixer_elem_t *elem)
 /**
  * \brief Free a mixer element
  * \param elem Mixer element
- * \return 0 on success otherwise a negative error code
  *
  * For use by mixer element class specific code.
  */