vidisp: use const pointer to base-class

1 files changed, 3 insertions, 4 deletions

diff --git a/modules/sdl/sdl.c b/modules/sdl/sdl.c
index eb902b3..ea60a38 100644
--- a/modules/sdl/sdl.c
+++ b/modules/sdl/sdl.c
@@ -17,7 +17,7 @@ enum {
 };
 
 struct vidisp_st {
-	struct vidisp *vd;  /* inheritance */
+	const struct vidisp *vd;  /* inheritance */
 };
 
 /** Global SDL data */
@@ -174,12 +174,11 @@ static void destructor(void *arg)
 {
 	struct vidisp_st *st = arg;
 
-	mem_deref(st->vd);
 	sdl_close();
 }
 
 
-static int alloc(struct vidisp_st **stp, struct vidisp *vd,
+static int alloc(struct vidisp_st **stp, const struct vidisp *vd,
 		 struct vidisp_prm *prm, const char *dev,
 		 vidisp_resize_h *resizeh, void *arg)
 {
@@ -197,7 +196,7 @@ static int alloc(struct vidisp_st **stp, struct vidisp *vd,
 	if (!st)
 		return ENOMEM;
 
-	st->vd = mem_ref(vd);
+	st->vd = vd;
 
 	sdl.resizeh = resizeh;
 	sdl.arg     = arg;