V4L/DVB (5545): Saa7146: Release capture buffers on device close
If the video device (saa7146 on a FF card) was open for capturing, the close call didn't release the capture buffers. Signed-off-by: Hartmut Birr <e9hack@gmail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -1428,6 +1428,7 @@ static void video_close(struct saa7146_dev *dev, struct file *file)
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{
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struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data;
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struct saa7146_vv *vv = dev->vv_data;
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struct videobuf_queue *q = &fh->video_q;
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int err;
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if (IS_CAPTURE_ACTIVE(fh) != 0) {
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@ -1436,6 +1437,11 @@ static void video_close(struct saa7146_dev *dev, struct file *file)
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err = saa7146_stop_preview(fh);
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}
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// release all capture buffers
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mutex_lock(&q->lock);
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videobuf_read_stop(q);
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mutex_unlock(&q->lock);
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/* hmm, why is this function declared void? */
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/* return err */
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}
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