[PATCH] media: saa7146: Convert timers to use timer_setup()

[Kees Cook]

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Hans Verkuil <hverk...@xs4all.nl>
Cc: Mauro Carvalho Chehab <mche...@kernel.org>
Cc: linux-media@vger.kernel.org
Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
This requires commit 686fef928bba ("timer: Prepare to change timer
callback argument type") in v4.14-rc3, but should be otherwise
stand-alone.
---
 drivers/media/common/saa7146/saa7146_fops.c  | 4 ++--
 drivers/media/common/saa7146/saa7146_vbi.c   | 3 +--
 drivers/media/common/saa7146/saa7146_video.c | 3 +--
 include/media/drv-intf/saa7146_vv.h          | 2 +-
 4 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/media/common/saa7146/saa7146_fops.c 
b/drivers/media/common/saa7146/saa7146_fops.c
index c4664f0da874..8c87d6837c49 100644
--- a/drivers/media/common/saa7146/saa7146_fops.c
+++ b/drivers/media/common/saa7146/saa7146_fops.c
@@ -163,9 +163,9 @@ void saa7146_buffer_next(struct saa7146_dev *dev,
        }
 }
 
-void saa7146_buffer_timeout(unsigned long data)
+void saa7146_buffer_timeout(struct timer_list *t)
 {
-       struct saa7146_dmaqueue *q = (struct saa7146_dmaqueue*)data;
+       struct saa7146_dmaqueue *q = from_timer(q, t, timeout);
        struct saa7146_dev *dev = q->dev;
        unsigned long flags;
 
diff --git a/drivers/media/common/saa7146/saa7146_vbi.c 
b/drivers/media/common/saa7146/saa7146_vbi.c
index f65c0b934c22..0f7599ad4958 100644
--- a/drivers/media/common/saa7146/saa7146_vbi.c
+++ b/drivers/media/common/saa7146/saa7146_vbi.c
@@ -366,8 +366,7 @@ static void vbi_init(struct saa7146_dev *dev, struct 
saa7146_vv *vv)
 
        INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
 
-       setup_timer(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout,
-                   (unsigned long)(&vv->vbi_dmaq));
+       timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
        vv->vbi_dmaq.dev              = dev;
 
        init_waitqueue_head(&vv->vbi_wq);
diff --git a/drivers/media/common/saa7146/saa7146_video.c 
b/drivers/media/common/saa7146/saa7146_video.c
index 37b4654dc21c..ed9b5300dcce 100644
--- a/drivers/media/common/saa7146/saa7146_video.c
+++ b/drivers/media/common/saa7146/saa7146_video.c
@@ -1201,8 +1201,7 @@ static void video_init(struct saa7146_dev *dev, struct 
saa7146_vv *vv)
 {
        INIT_LIST_HEAD(&vv->video_dmaq.queue);
 
-       setup_timer(&vv->video_dmaq.timeout, saa7146_buffer_timeout,
-                   (unsigned long)(&vv->video_dmaq));
+       timer_setup(&vv->video_dmaq.timeout, saa7146_buffer_timeout, 0);
        vv->video_dmaq.dev              = dev;
 
        /* set some default values */
diff --git a/include/media/drv-intf/saa7146_vv.h 
b/include/media/drv-intf/saa7146_vv.h
index fbe36d05fb79..b1f25240968f 100644
--- a/include/media/drv-intf/saa7146_vv.h
+++ b/include/media/drv-intf/saa7146_vv.h
@@ -184,7 +184,7 @@ int saa7146_unregister_device(struct video_device *vid, 
struct saa7146_dev *dev)
 void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue 
*q, int state);
 void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue 
*q,int vbi);
 int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, 
struct saa7146_buf *buf);
-void saa7146_buffer_timeout(unsigned long data);
+void saa7146_buffer_timeout(struct timer_list *t);
 void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
                                                struct saa7146_buf *buf);
 
-- 
2.7.4


-- 
Kees Cook
Pixel Security