ENGR00286149-5: Revert "ENGR00277805-6"

[karo-tx-linux.git] / include / sound / core.h

diff --git a/include/sound/core.h b/include/sound/core.h
index eedda2cdfe5796298f8aa4847ecd6fb8e3a2a098..1df3f2fe5350f8a886e65d17cb7caebced128b20 100644 (file)
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -116,6 +116,8 @@ struct snd_card {
        int user_ctl_count;             /* count of all user controls */
        struct list_head controls;      /* all controls for this card */
        struct list_head ctl_files;     /* active control files */
+       struct mutex user_ctl_lock;     /* protects user controls against
+                                          concurrent access */
 
        struct snd_info_entry *proc_root;       /* root for soundcard specific files */
        struct snd_info_entry *proc_id; /* the card id */