1 files changed, 2 insertions, 1 deletions

diff --git a/sound/pci/ctxfi/ctvmem.h b/sound/pci/ctxfi/ctvmem.h
index 4eb5bdd5cad4..618952efa5b3 100644
--- a/sound/pci/ctxfi/ctvmem.h
+++ b/sound/pci/ctxfi/ctvmem.h
@@ -20,7 +20,7 @@
 
 #define CT_PTP_NUM      1       /* num of device page table pages */
 
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/list.h>
 
 struct ct_vm_block {
@@ -35,6 +35,7 @@ struct ct_vm {
         unsigned int size;              /* Available addr space in bytes */
         struct list_head unused;        /* List of unused blocks */
         struct list_head used;          /* List of used blocks */
+        struct mutex lock;
 
         /* Map host addr (kmalloced/vmalloced) to device logical addr. */
         struct ct_vm_block *(*map)(struct ct_vm *, void *host_addr, int size);