Allow setting the same timings as the current timings (i.e., do nothing in that
case). The code was actually there, but the vb2_is_busy() call was done before
the timings check instead of afterwards.

Found by v4l2-compliance.

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>

diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c 
b/drivers/media/platform/vivid/vivid-vid-cap.c
index 1d9ea2d..c942bf7 100644
--- a/drivers/media/platform/vivid/vivid-vid-cap.c
+++ b/drivers/media/platform/vivid/vivid-vid-cap.c
@@ -1585,13 +1585,13 @@ int vivid_vid_cap_s_dv_timings(struct file *file, void 
*_fh,
 
        if (!vivid_is_hdmi_cap(dev))
                return -ENODATA;
-       if (vb2_is_busy(&dev->vb_vid_cap_q))
-               return -EBUSY;
        if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
                                0, NULL, NULL))
                return -EINVAL;
        if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0))
                return 0;
+       if (vb2_is_busy(&dev->vb_vid_cap_q))
+               return -EBUSY;
        dev->dv_timings_cap = *timings;
        vivid_update_format_cap(dev, false);
        return 0;
diff --git a/drivers/media/platform/vivid/vivid-vid-out.c 
b/drivers/media/platform/vivid/vivid-vid-out.c
index 917cc69..5782b7d 100644
--- a/drivers/media/platform/vivid/vivid-vid-out.c
+++ b/drivers/media/platform/vivid/vivid-vid-out.c
@@ -1125,13 +1125,13 @@ int vivid_vid_out_s_dv_timings(struct file *file, void 
*_fh,
 
        if (!vivid_is_hdmi_out(dev))
                return -ENODATA;
-       if (vb2_is_busy(&dev->vb_vid_out_q))
-               return -EBUSY;
        if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
                                0, NULL, NULL))
                return -EINVAL;
        if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0))
                return 0;
+       if (vb2_is_busy(&dev->vb_vid_out_q))
+               return -EBUSY;
        dev->dv_timings_out = *timings;
        vivid_update_format_out(dev);
        return 0;
--
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