diff options
Diffstat (limited to 'drivers/media/platform/vivid/vivid-kthread-cap.c')
| -rw-r--r-- | drivers/media/platform/vivid/vivid-kthread-cap.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/platform/vivid/vivid-kthread-cap.c b/drivers/media/platform/vivid/vivid-kthread-cap.c index 6cf495a7d5cc..003319d7816d 100644 --- a/drivers/media/platform/vivid/vivid-kthread-cap.c +++ b/drivers/media/platform/vivid/vivid-kthread-cap.c @@ -232,8 +232,8 @@ static void *plane_vaddr(struct tpg_data *tpg, struct vivid_buffer *buf, return vbuf; } -static int vivid_copy_buffer(struct vivid_dev *dev, unsigned p, u8 *vcapbuf, - struct vivid_buffer *vid_cap_buf) +static noinline_for_stack int vivid_copy_buffer(struct vivid_dev *dev, unsigned p, + u8 *vcapbuf, struct vivid_buffer *vid_cap_buf) { bool blank = dev->must_blank[vid_cap_buf->vb.vb2_buf.index]; struct tpg_data *tpg = &dev->tpg; @@ -658,6 +658,8 @@ static void vivid_cap_update_frame_period(struct vivid_dev *dev) u64 f_period; f_period = (u64)dev->timeperframe_vid_cap.numerator * 1000000000; + if (WARN_ON(dev->timeperframe_vid_cap.denominator == 0)) + dev->timeperframe_vid_cap.denominator = 1; do_div(f_period, dev->timeperframe_vid_cap.denominator); if (dev->field_cap == V4L2_FIELD_ALTERNATE) f_period >>= 1; @@ -670,7 +672,8 @@ static void vivid_cap_update_frame_period(struct vivid_dev *dev) dev->cap_frame_period = f_period; } -static void vivid_thread_vid_cap_tick(struct vivid_dev *dev, int dropped_bufs) +static noinline_for_stack void vivid_thread_vid_cap_tick(struct vivid_dev *dev, + int dropped_bufs) { struct vivid_buffer *vid_cap_buf = NULL; struct vivid_buffer *vbi_cap_buf = NULL; |