On 08/11/16 14:55, Sakari Ailus wrote:
Use the new media_device_alloc() API to allocate and release the media
device.
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
---
drivers/media/platform/omap3isp/isp.c | 24 +++++++++++++-----------
drivers/media/platform/omap3isp/isp.h | 2 +-
drivers/media/platform/omap3isp/ispvideo.c | 2 +-
3 files changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/media/platform/omap3isp/isp.c
b/drivers/media/platform/omap3isp/isp.c
index 2e1b17e..8bc7a7c 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -1601,8 +1601,8 @@ static void isp_unregister_entities(struct isp_device
*isp)
omap3isp_stat_unregister_entities(&isp->isp_hist);
v4l2_device_unregister(&isp->v4l2_dev);
- media_device_unregister(&isp->media_dev);
- media_device_cleanup(&isp->media_dev);
+ media_device_unregister(isp->media_dev);
+ media_device_put(isp->media_dev);
}
static int isp_link_entity(
@@ -1680,14 +1680,16 @@ static int isp_register_entities(struct isp_device *isp)
{
int ret;
- isp->media_dev.dev = isp->dev;
- strlcpy(isp->media_dev.model, "TI OMAP3 ISP",
- sizeof(isp->media_dev.model));
- isp->media_dev.hw_revision = isp->revision;
- isp->media_dev.ops = &isp_media_ops;
- media_device_init(&isp->media_dev);
+ isp->media_dev = media_device_alloc(isp->dev, isp);
+ if (!isp->media_dev)
+ return -ENOMEM;
+
+ strlcpy(isp->media_dev->model, "TI OMAP3 ISP",
+ sizeof(isp->media_dev->model));
+ isp->media_dev->hw_revision = isp->revision;
+ isp->media_dev->ops = &isp_media_ops;
- isp->v4l2_dev.mdev = &isp->media_dev;
+ isp->v4l2_dev.mdev = isp->media_dev;
ret = v4l2_device_register(isp->dev, &isp->v4l2_dev);
if (ret < 0) {
dev_err(isp->dev, "%s: V4L2 device registration failed (%d)\n",
@@ -2165,7 +2167,7 @@ static int isp_subdev_notifier_complete(struct
v4l2_async_notifier *async)
struct isp_bus_cfg *bus;
int ret;
- ret = media_entity_enum_init(&isp->crashed, &isp->media_dev);
+ ret = media_entity_enum_init(&isp->crashed, isp->media_dev);
if (ret)
return ret;
@@ -2183,7 +2185,7 @@ static int isp_subdev_notifier_complete(struct
v4l2_async_notifier *async)
if (ret < 0)
return ret;
- return media_device_register(&isp->media_dev);
+ return media_device_register(isp->media_dev);
I wonder if this is correct. Usually if the register fails, then the
release/delete function
has to be called explicitly. That doesn't happen here.
E.g. from adv7604.c:
static int adv76xx_registered(struct v4l2_subdev *sd)
{
struct adv76xx_state *state = to_state(sd);
int err;
err = cec_register_adapter(state->cec_adap);
if (err)
cec_delete_adapter(state->cec_adap);
return err;
}
}
/*
diff --git a/drivers/media/platform/omap3isp/isp.h
b/drivers/media/platform/omap3isp/isp.h
index 7e6f663..7378279 100644
--- a/drivers/media/platform/omap3isp/isp.h
+++ b/drivers/media/platform/omap3isp/isp.h
@@ -176,7 +176,7 @@ struct isp_xclk {
struct isp_device {
struct v4l2_device v4l2_dev;
struct v4l2_async_notifier notifier;
- struct media_device media_dev;
+ struct media_device *media_dev;
struct device *dev;
u32 revision;
diff --git a/drivers/media/platform/omap3isp/ispvideo.c
b/drivers/media/platform/omap3isp/ispvideo.c
index 7354469..33e74b9 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -1104,7 +1104,7 @@ isp_video_streamon(struct file *file, void *fh, enum
v4l2_buf_type type)
pipe = video->video.entity.pipe
? to_isp_pipeline(&video->video.entity) : &video->pipe;
- ret = media_entity_enum_init(&pipe->ent_enum, &video->isp->media_dev);
+ ret = media_entity_enum_init(&pipe->ent_enum, video->isp->media_dev);
if (ret)
goto err_enum_init;
Regards,
Hans
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