diff --git a/drivers/media/platform/st/stm32/dma2d/dma2d.c b/drivers/media/platform/st/stm32/dma2d/dma2d.c
index bc0f81e78018b20c38677eaea44358ddad7a9a52..a22f587a5f83fe114e5b1f0a7a0299638701fa71 100644
--- a/drivers/media/platform/st/stm32/dma2d/dma2d.c
+++ b/drivers/media/platform/st/stm32/dma2d/dma2d.c
@@ -354,7 +354,7 @@ static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f)
 
 static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f)
 {
-	struct dma2d_ctx *ctx = prv;
+	struct dma2d_ctx *ctx = file2ctx(file);
 	struct vb2_queue *vq;
 	struct dma2d_frame *frm;
 
@@ -379,7 +379,7 @@ static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f)
 
 static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f)
 {
-	struct dma2d_ctx *ctx = prv;
+	struct dma2d_ctx *ctx = file2ctx(file);
 	struct dma2d_fmt *fmt;
 	enum v4l2_field *field;
 	u32 fourcc = f->fmt.pix.pixelformat;
@@ -422,7 +422,7 @@ static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f)
 
 static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f)
 {
-	struct dma2d_ctx *ctx = prv;
+	struct dma2d_ctx *ctx = file2ctx(file);
 	struct vb2_queue *vq;
 	struct dma2d_frame *frm;
 	struct dma2d_fmt *fmt;