* [RFC/RFT 02/10] radio-mr800: simplify video_device allocation
@ 2009-09-12 14:49 David Ellingsworth
0 siblings, 0 replies; only message in thread
From: David Ellingsworth @ 2009-09-12 14:49 UTC (permalink / raw)
To: linux-media, klimov.linux
[-- Attachment #1: Type: text/plain, Size: 6334 bytes --]
From 2839cd94e21123151c0fe6683991f5a3c88fa877 Mon Sep 17 00:00:00 2001
From: David Ellingsworth <david@identd.dyndns.org>
Date: Fri, 11 Sep 2009 23:59:22 -0400
Subject: [PATCH 02/10] mr800: simplify video_device allocation
Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
---
drivers/media/radio/radio-mr800.c | 53
++++++++++++++----------------------
1 files changed, 21 insertions(+), 32 deletions(-)
diff --git a/drivers/media/radio/radio-mr800.c
b/drivers/media/radio/radio-mr800.c
index 8e96c8a..3129692 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -129,7 +129,7 @@ static int usb_amradio_resume(struct usb_interface
*intf);
struct amradio_device {
/* reference to USB and video device */
struct usb_device *usbdev;
- struct video_device *videodev;
+ struct video_device videodev;
struct v4l2_device v4l2_dev;
unsigned char *buffer;
@@ -272,7 +272,7 @@ static void usb_amradio_disconnect(struct
usb_interface *intf)
mutex_unlock(&radio->lock);
usb_set_intfdata(intf, NULL);
- video_unregister_device(radio->videodev);
+ video_unregister_device(&radio->videodev);
v4l2_device_disconnect(&radio->v4l2_dev);
}
@@ -320,7 +320,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
*/
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
strcpy(v->name, "FM");
@@ -366,13 +366,13 @@ static int vidioc_s_tuner(struct file *file, void
*priv,
case V4L2_TUNER_MODE_MONO:
retval = amradio_set_stereo(radio, WANT_MONO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set mono failed\n");
break;
case V4L2_TUNER_MODE_STEREO:
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
break;
default:
@@ -403,7 +403,7 @@ static int vidioc_s_frequency(struct file *file,
void *priv,
retval = amradio_setfreq(radio, radio->curfreq);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set frequency failed\n");
unlock:
@@ -493,13 +493,13 @@ static int vidioc_s_ctrl(struct file *file, void
*priv,
if (ctrl->value) {
retval = amradio_set_mute(radio, AMRADIO_STOP);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_stop failed\n");
}
} else {
retval = amradio_set_mute(radio, AMRADIO_START);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_start failed\n");
}
}
@@ -565,7 +565,7 @@ static int usb_amradio_open(struct file *file)
retval = amradio_set_mute(radio, AMRADIO_START);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"radio did not start up properly\n");
radio->users = 0;
goto unlock;
@@ -573,12 +573,12 @@ static int usb_amradio_open(struct file *file)
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
retval = amradio_setfreq(radio, radio->curfreq);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set frequency failed\n");
unlock:
@@ -604,7 +604,7 @@ static int usb_amradio_close(struct file *file)
if (!radio->removed) {
retval = amradio_set_mute(radio, AMRADIO_STOP);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_stop failed\n");
}
@@ -676,9 +676,6 @@ static void usb_amradio_video_device_release(struct
video_device *videodev)
{
struct amradio_device *radio = video_get_drvdata(videodev);
- /* we call v4l to free radio->videodev */
- video_device_release(videodev);
-
v4l2_device_unregister(&radio->v4l2_dev);
/* free rest memory */
@@ -718,20 +715,12 @@ static int usb_amradio_probe(struct usb_interface
*intf,
return retval;
}
- radio->videodev = video_device_alloc();
-
- if (!radio->videodev) {
- dev_err(&intf->dev, "video_device_alloc failed\n");
- kfree(radio->buffer);
- kfree(radio);
- return -ENOMEM;
- }
-
- strlcpy(radio->videodev->name, v4l2_dev->name,
sizeof(radio->videodev->name));
- radio->videodev->v4l2_dev = v4l2_dev;
- radio->videodev->fops = &usb_amradio_fops;
- radio->videodev->ioctl_ops = &usb_amradio_ioctl_ops;
- radio->videodev->release = usb_amradio_video_device_release;
+ strlcpy(radio->videodev.name, v4l2_dev->name,
+ sizeof(radio->videodev.name));
+ radio->videodev.v4l2_dev = v4l2_dev;
+ radio->videodev.fops = &usb_amradio_fops;
+ radio->videodev.ioctl_ops = &usb_amradio_ioctl_ops;
+ radio->videodev.release = usb_amradio_video_device_release;
radio->removed = 0;
radio->users = 0;
@@ -741,12 +730,12 @@ static int usb_amradio_probe(struct usb_interface
*intf,
mutex_init(&radio->lock);
- video_set_drvdata(radio->videodev, radio);
+ video_set_drvdata(&radio->videodev, radio);
- retval = video_register_device(radio->videodev,
VFL_TYPE_RADIO, radio_nr);
+ retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO,
+ radio_nr);
if (retval < 0) {
dev_err(&intf->dev, "could not register video device\n");
- video_device_release(radio->videodev);
v4l2_device_unregister(v4l2_dev);
kfree(radio->buffer);
kfree(radio);
--
1.6.3.3
[-- Attachment #2: 0002-mr800-simplify-video_device-allocation.patch --]
[-- Type: text/x-diff, Size: 5668 bytes --]
>From 2839cd94e21123151c0fe6683991f5a3c88fa877 Mon Sep 17 00:00:00 2001
From: David Ellingsworth <david@identd.dyndns.org>
Date: Fri, 11 Sep 2009 23:59:22 -0400
Subject: [PATCH 02/10] mr800: simplify video_device allocation
Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
---
drivers/media/radio/radio-mr800.c | 53 ++++++++++++++----------------------
1 files changed, 21 insertions(+), 32 deletions(-)
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 8e96c8a..3129692 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -129,7 +129,7 @@ static int usb_amradio_resume(struct usb_interface *intf);
struct amradio_device {
/* reference to USB and video device */
struct usb_device *usbdev;
- struct video_device *videodev;
+ struct video_device videodev;
struct v4l2_device v4l2_dev;
unsigned char *buffer;
@@ -272,7 +272,7 @@ static void usb_amradio_disconnect(struct usb_interface *intf)
mutex_unlock(&radio->lock);
usb_set_intfdata(intf, NULL);
- video_unregister_device(radio->videodev);
+ video_unregister_device(&radio->videodev);
v4l2_device_disconnect(&radio->v4l2_dev);
}
@@ -320,7 +320,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
*/
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
strcpy(v->name, "FM");
@@ -366,13 +366,13 @@ static int vidioc_s_tuner(struct file *file, void *priv,
case V4L2_TUNER_MODE_MONO:
retval = amradio_set_stereo(radio, WANT_MONO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set mono failed\n");
break;
case V4L2_TUNER_MODE_STEREO:
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
break;
default:
@@ -403,7 +403,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
retval = amradio_setfreq(radio, radio->curfreq);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set frequency failed\n");
unlock:
@@ -493,13 +493,13 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
if (ctrl->value) {
retval = amradio_set_mute(radio, AMRADIO_STOP);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_stop failed\n");
}
} else {
retval = amradio_set_mute(radio, AMRADIO_START);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_start failed\n");
}
}
@@ -565,7 +565,7 @@ static int usb_amradio_open(struct file *file)
retval = amradio_set_mute(radio, AMRADIO_START);
if (retval < 0) {
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"radio did not start up properly\n");
radio->users = 0;
goto unlock;
@@ -573,12 +573,12 @@ static int usb_amradio_open(struct file *file)
retval = amradio_set_stereo(radio, WANT_STEREO);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set stereo failed\n");
retval = amradio_setfreq(radio, radio->curfreq);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"set frequency failed\n");
unlock:
@@ -604,7 +604,7 @@ static int usb_amradio_close(struct file *file)
if (!radio->removed) {
retval = amradio_set_mute(radio, AMRADIO_STOP);
if (retval < 0)
- amradio_dev_warn(&radio->videodev->dev,
+ amradio_dev_warn(&radio->videodev.dev,
"amradio_stop failed\n");
}
@@ -676,9 +676,6 @@ static void usb_amradio_video_device_release(struct video_device *videodev)
{
struct amradio_device *radio = video_get_drvdata(videodev);
- /* we call v4l to free radio->videodev */
- video_device_release(videodev);
-
v4l2_device_unregister(&radio->v4l2_dev);
/* free rest memory */
@@ -718,20 +715,12 @@ static int usb_amradio_probe(struct usb_interface *intf,
return retval;
}
- radio->videodev = video_device_alloc();
-
- if (!radio->videodev) {
- dev_err(&intf->dev, "video_device_alloc failed\n");
- kfree(radio->buffer);
- kfree(radio);
- return -ENOMEM;
- }
-
- strlcpy(radio->videodev->name, v4l2_dev->name, sizeof(radio->videodev->name));
- radio->videodev->v4l2_dev = v4l2_dev;
- radio->videodev->fops = &usb_amradio_fops;
- radio->videodev->ioctl_ops = &usb_amradio_ioctl_ops;
- radio->videodev->release = usb_amradio_video_device_release;
+ strlcpy(radio->videodev.name, v4l2_dev->name,
+ sizeof(radio->videodev.name));
+ radio->videodev.v4l2_dev = v4l2_dev;
+ radio->videodev.fops = &usb_amradio_fops;
+ radio->videodev.ioctl_ops = &usb_amradio_ioctl_ops;
+ radio->videodev.release = usb_amradio_video_device_release;
radio->removed = 0;
radio->users = 0;
@@ -741,12 +730,12 @@ static int usb_amradio_probe(struct usb_interface *intf,
mutex_init(&radio->lock);
- video_set_drvdata(radio->videodev, radio);
+ video_set_drvdata(&radio->videodev, radio);
- retval = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
+ retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO,
+ radio_nr);
if (retval < 0) {
dev_err(&intf->dev, "could not register video device\n");
- video_device_release(radio->videodev);
v4l2_device_unregister(v4l2_dev);
kfree(radio->buffer);
kfree(radio);
--
1.6.3.3
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2009-09-12 14:49 [RFC/RFT 02/10] radio-mr800: simplify video_device allocation David Ellingsworth
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