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reject format changes while buffers are allocated #53

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reject format changes while buffers are allocated #53

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3 changes: 3 additions & 0 deletions device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,9 @@ static int vcam_s_fmt_vid_cap(struct file *file,

struct vcam_device *dev = (struct vcam_device *) video_drvdata(file);

if (vb2_is_busy(&dev->vb_out_vidq))
return -EBUSY;

ret = vcam_try_fmt_vid_cap(file, priv, f);
if (ret < 0)
return ret;
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