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-rw-r--r--drivers/media/video/ivtv/ivtv-irq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/ivtv/ivtv-irq.c b/drivers/media/video/ivtv/ivtv-irq.c
index fc8eac09584..8c00d8f6d4d 100644
--- a/drivers/media/video/ivtv/ivtv-irq.c
+++ b/drivers/media/video/ivtv/ivtv-irq.c
@@ -797,7 +797,7 @@ static void ivtv_irq_vsync(struct ivtv *itv)
/* Check if we need to update the yuv registers */
if ((yi->yuv_forced_update || yi->new_frame_info[last_dma_frame].update) && last_dma_frame != -1) {
if (!yi->new_frame_info[last_dma_frame].update)
- last_dma_frame = (last_dma_frame - 1) & 3;
+ last_dma_frame = (u8)(last_dma_frame - 1) % IVTV_YUV_BUFFERS;
if (yi->new_frame_info[last_dma_frame].src_w) {
yi->update_frame = last_dma_frame;