diff --git a/[refs] b/[refs]
index 0c2d0bc73379..031c854b5368 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f088d5a9c5dd22b6559fa3f3939973bc374c977b
+refs/heads/master: c7493668eeced636afabfed57dfead8329c3d7fa
diff --git a/trunk/drivers/gpu/drm/exynos/exynos_drm_buf.c b/trunk/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 6f8afea94fc9..303189c78cf1 100644
--- a/trunk/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/trunk/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -29,8 +29,6 @@
 #include "exynos_drm_drv.h"
 #include "exynos_drm_buf.h"
 
-static DEFINE_MUTEX(exynos_drm_buf_lock);
-
 static int lowlevel_buffer_allocate(struct drm_device *dev,
 		struct exynos_drm_buf_entry *entry)
 {