Same with this one - let's take it as is and address a couple of clean-ups later. On Thu, 30 Sep 2010, Janusz Krzysztofik wrote: > +static void omap1_videobuf_queue(struct videobuf_queue *vq, > + struct videobuf_buffer *vb) > +{ > + struct soc_camera_device *icd = vq->priv_data; > + struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); > + struct omap1_cam_dev *pcdev = ici->priv; > + struct omap1_cam_buf *buf; > + u32 mode; > + > + list_add_tail(&vb->queue, &pcdev->capture); > + vb->state = VIDEOBUF_QUEUED; > + > + if (pcdev->active) { > + /* > + * Capture in progress, so don't touch pcdev->ready even if > + * empty. Since the transfer of the DMA programming register set > + * content to the DMA working register set is done automatically > + * by the DMA hardware, this can pretty well happen while we > + * are keeping the lock here. Levae fetching it from the queue "Leave" > + * to be done when a next DMA interrupt occures instead. > + */ > + return; > + } superfluous braces > +static void videobuf_done(struct omap1_cam_dev *pcdev, > + enum videobuf_state result) > +{ > + struct omap1_cam_buf *buf = pcdev->active; > + struct videobuf_buffer *vb; > + struct device *dev = pcdev->icd->dev.parent; > + > + if (WARN_ON(!buf)) { > + suspend_capture(pcdev); > + disable_capture(pcdev); > + return; > + } > + > + if (result == VIDEOBUF_ERROR) > + suspend_capture(pcdev); > + > + vb = &buf->vb; > + if (waitqueue_active(&vb->done)) { > + if (!pcdev->ready && result != VIDEOBUF_ERROR) { > + /* > + * No next buffer has been entered into the DMA > + * programming register set on time (could be done only > + * while the previous DMA interurpt was processed, not > + * later), so the last DMA block, be it a whole buffer > + * if in CONTIG or its last sgbuf if in SG mode, is > + * about to be reused by the just autoreinitialized DMA > + * engine, and overwritten with next frame data. Best we > + * can do is stopping the capture as soon as possible, > + * hopefully before the next frame start. > + */ > + suspend_capture(pcdev); > + } superfluous braces Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html