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[media] media: i.MX27 camera: Use list_first_entry() whenever possible 

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
[g.liakhovetski@gmx.de: fix one list_first_entry() instance]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Javier Martin 2012-02-22 07:59:33 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель d84279e6d7
Коммит a654ba16fd
1 изменённых файлов: 12 добавлений и 14 удалений
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26
drivers/media/video/mx2_camera.c
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@ -449,7 +449,7 @@ static void mx25_camera_frame_done(struct mx2_camera_dev *pcdev, int fb,
buf = NULL;
writel(0, pcdev->base_csi + fb_reg);
} else {
buf = list_entry(pcdev->capture.next, struct mx2_buffer,
buf = list_first_entry(&pcdev->capture, struct mx2_buffer,
queue);
vb = &buf->vb;
list_del(&buf->queue);
@ -709,8 +709,8 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
spin_lock_irqsave(&pcdev->lock, flags);
buf = list_entry(pcdev->capture.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->capture, struct mx2_buffer,
queue);
buf->bufnum = 0;
vb = &buf->vb;
buf->state = MX2_STATE_ACTIVE;
@ -719,8 +719,8 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
mx27_update_emma_buf(pcdev, phys, buf->bufnum);
list_move_tail(pcdev->capture.next, &pcdev->active_bufs);
buf = list_entry(pcdev->capture.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->capture, struct mx2_buffer,
queue);
buf->bufnum = 1;
vb = &buf->vb;
buf->state = MX2_STATE_ACTIVE;
@ -1205,8 +1205,7 @@ static void mx27_camera_frame_done_emma(struct mx2_camera_dev *pcdev,
struct vb2_buffer *vb;
unsigned long phys;
buf = list_entry(pcdev->active_bufs.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->active_bufs, struct mx2_buffer, queue);
BUG_ON(buf->bufnum != bufnum);
@ -1260,8 +1259,8 @@ static void mx27_camera_frame_done_emma(struct mx2_camera_dev *pcdev,
return;
}
buf = list_entry(pcdev->discard.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->discard, struct mx2_buffer,
queue);
buf->bufnum = bufnum;
list_move_tail(pcdev->discard.next, &pcdev->active_bufs);
@ -1269,8 +1268,7 @@ static void mx27_camera_frame_done_emma(struct mx2_camera_dev *pcdev,
return;
}
buf = list_entry(pcdev->capture.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->capture, struct mx2_buffer, queue);
buf->bufnum = bufnum;
@ -1304,7 +1302,7 @@ static irqreturn_t mx27_camera_emma_irq(int irq_emma, void *data)
pcdev->base_emma + PRP_CNTL);
writel(cntl, pcdev->base_emma + PRP_CNTL);
buf = list_entry(pcdev->active_bufs.next,
buf = list_first_entry(&pcdev->active_bufs,
struct mx2_buffer, queue);
mx27_camera_frame_done_emma(pcdev,
buf->bufnum, true);
@ -1316,8 +1314,8 @@ static irqreturn_t mx27_camera_emma_irq(int irq_emma, void *data)
* Both buffers have triggered, process the one we're expecting
* to first
*/
buf = list_entry(pcdev->active_bufs.next,
struct mx2_buffer, queue);
buf = list_first_entry(&pcdev->active_bufs, struct mx2_buffer,
queue);
mx27_camera_frame_done_emma(pcdev, buf->bufnum, false);
status &= ~(1 << (6 - buf->bufnum)); /* mark processed */
} else if ((status & (1 << 6)) || (status & (1 << 4))) {