playlist: clear pc.errored_song on delete

When a (remote) song is deleted from the playlist, there may still be
a reference to it in pc.errored_song.  Clear this reference.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/player_control.h b/src/player_control.h
index 2ae1fb61..fa228d8b 100644
--- a/src/player_control.h
+++ b/src/player_control.h
@@ -84,6 +84,14 @@ void pc_init(unsigned int buffered_before_play);
 
 void pc_deinit(void);
 
+/**
+ * Call this function when the specified song pointer is about to be
+ * invalidated.  This makes sure that player_control.errored_song does
+ * not point to an invalid pointer.
+ */
+void
+pc_song_deleted(const struct song *song);
+
 void
 playerPlay(struct song *song);