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adapt to mainline kernel changes

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This commit is contained in:
internal
2023-05-05 13:08:01 +02:00
parent 626aa6d7be
commit e9399971f8
12 changed files with 279 additions and 128 deletions
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60
dvb-core/dvbdev.c
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@@ -1,20 +1,10 @@
// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* dvbdev.c
*
* Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
* & Marcus Metzler <marcus@convergence.de>
* for convergence integrated media GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#define pr_fmt(fmt) "dvbdev: " fmt
@@ -118,7 +108,7 @@ static int dvb_device_open(struct inode *inode, struct file *file)
new_fops = fops_get(dvbdev->fops);
if (!new_fops)
goto fail;
file->private_data = dvbdev;
file->private_data = dvb_device_get(dvbdev);
replace_fops(file, new_fops);
if (file->f_op->open)
err = file->f_op->open(inode, file);
@@ -182,6 +172,9 @@ int dvb_generic_release(struct inode *inode, struct file *file)
}
dvbdev->users++;
dvb_device_put(dvbdev);
return 0;
}
EXPORT_SYMBOL(dvb_generic_release);
@@ -264,7 +257,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev)
static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
const char *name, int npads)
{
int i, ret = 0;
int i;
dvbdev->tsout_pads = kcalloc(npads, sizeof(*dvbdev->tsout_pads),
GFP_KERNEL);
@@ -281,6 +274,7 @@ static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
for (i = 0; i < npads; i++) {
struct media_pad *pads = &dvbdev->tsout_pads[i];
struct media_entity *entity = &dvbdev->tsout_entity[i];
int ret;
entity->name = kasprintf(GFP_KERNEL, "%s #%d", name, i);
if (!entity->name)
@@ -353,6 +347,7 @@ static int dvb_create_media_entity(struct dvb_device *dvbdev,
GFP_KERNEL);
if (!dvbdev->pads) {
kfree(dvbdev->entity);
dvbdev->entity = NULL;
return -ENOMEM;
}
}
@@ -499,6 +494,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
}
memcpy(dvbdev, template, sizeof(struct dvb_device));
kref_init(&dvbdev->ref);
dvbdev->type = type;
dvbdev->id = id;
dvbdev->adapter = adap;
@@ -529,7 +525,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
#endif
dvbdev->minor = minor;
dvb_minors[minor] = dvbdev;
dvb_minors[minor] = dvb_device_get(dvbdev);
up_write(&minor_rwsem);
ret = dvb_register_media_device(dvbdev, type, minor, demux_sink_pads);
@@ -574,6 +570,7 @@ void dvb_remove_device(struct dvb_device *dvbdev)
down_write(&minor_rwsem);
dvb_minors[dvbdev->minor] = NULL;
dvb_device_put(dvbdev);
up_write(&minor_rwsem);
dvb_media_device_free(dvbdev);
@@ -585,21 +582,34 @@ void dvb_remove_device(struct dvb_device *dvbdev)
EXPORT_SYMBOL(dvb_remove_device);
void dvb_free_device(struct dvb_device *dvbdev)
static void dvb_free_device(struct kref *ref)
{
if (!dvbdev)
return;
struct dvb_device *dvbdev = container_of(ref, struct dvb_device, ref);
kfree (dvbdev->fops);
kfree (dvbdev);
}
EXPORT_SYMBOL(dvb_free_device);
struct dvb_device *dvb_device_get(struct dvb_device *dvbdev)
{
kref_get(&dvbdev->ref);
return dvbdev;
}
EXPORT_SYMBOL(dvb_device_get);
void dvb_device_put(struct dvb_device *dvbdev)
{
if (dvbdev)
kref_put(&dvbdev->ref, dvb_free_device);
}
void dvb_unregister_device(struct dvb_device *dvbdev)
{
dvb_remove_device(dvbdev);
dvb_free_device(dvbdev);
dvb_device_put(dvbdev);
}
EXPORT_SYMBOL(dvb_unregister_device);
@@ -1041,9 +1051,13 @@ EXPORT_SYMBOL_GPL(dvb_module_release);
#endif
#endif
#if (KERNEL_VERSION(6, 2, 0) > LINUX_VERSION_CODE)
static int dvb_uevent(struct device *dev, struct kobj_uevent_env *env)
#else
static int dvb_uevent(const struct device *dev, struct kobj_uevent_env *env)
#endif
{
struct dvb_device *dvbdev = dev_get_drvdata(dev);
const struct dvb_device *dvbdev = dev_get_drvdata(dev);
add_uevent_var(env, "DVB_ADAPTER_NUM=%d", dvbdev->adapter->num);
add_uevent_var(env, "DVB_DEVICE_TYPE=%s", dnames[dvbdev->type]);
@@ -1051,9 +1065,13 @@ static int dvb_uevent(struct device *dev, struct kobj_uevent_env *env)
return 0;
}
#if (KERNEL_VERSION(6, 2, 0) > LINUX_VERSION_CODE)
static char *dvb_devnode(struct device *dev, umode_t *mode)
#else
static char *dvb_devnode(const struct device *dev, umode_t *mode)
#endif
{
struct dvb_device *dvbdev = dev_get_drvdata(dev);
const struct dvb_device *dvbdev = dev_get_drvdata(dev);
return kasprintf(GFP_KERNEL, "dvb/adapter%d/%s%d",
dvbdev->adapter->num, dnames[dvbdev->type], dvbdev->id);