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authorJavier Martin <javier.martin@vista-silicon.com>2012-02-22 07:59:33 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-03-08 09:43:03 -0300
commita654ba16fdbad8ffb5a6c0dd5098c6651bde08b5 (patch)
tree046f3a0af63fef7fbd7931b802f682648d56f79d
parentd84279e6d7266e11bef19de4f624849daa70bc48 (diff)
[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>
-rw-r--r--drivers/media/video/mx2_camera.c26
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 32a9d76d69c8..2d1941435786 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -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))) {

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