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media: ddbridge: move ddb_wq and the wq+class initialisation to -core

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Move the ddbridge module initialisation and cleanup code to ddbridge-core
and set up the ddb_wq workqueue there, and create and destroy the ddb
device class there aswell. Due to this, the prototypes for ddb_wq,
ddb_class_create() and ddb_class_destroy() aren't required in ddbridge.h
anymore, so remove them. Also, declare ddb_wq and the ddb_class_*()
functions static.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Daniel Scheller 2018-04-09 12:47:37 -04:00 committed by Mauro Carvalho Chehab
parent 5589974ecd
commit 05ed62da03
3 changed files with 38 additions and 22 deletions
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32
drivers/media/pci/ddbridge/ddbridge-core.c
View file

@ -100,7 +100,7 @@ MODULE_PARM_DESC(stv0910_single, "use stv0910 cards as single demods");
static DEFINE_MUTEX(redirect_lock);
struct workqueue_struct *ddb_wq;
static struct workqueue_struct *ddb_wq;
static struct ddb *ddbs[DDB_MAX_ADAPTER];
@ -3040,7 +3040,7 @@ static struct class ddb_class = {
.devnode = ddb_devnode,
};
int ddb_class_create(void)
static int ddb_class_create(void)
{
ddb_major = register_chrdev(0, DDB_NAME, &ddb_fops);
if (ddb_major < 0)
@ -3050,7 +3050,7 @@ int ddb_class_create(void)
return 0;
}
void ddb_class_destroy(void)
static void ddb_class_destroy(void)
{
class_unregister(&ddb_class);
unregister_chrdev(ddb_major, DDB_NAME);
@ -3322,3 +3322,29 @@ void ddb_unmap(struct ddb *dev)
iounmap(dev->regs);
vfree(dev);
}
int ddb_exit_ddbridge(int stage, int error)
{
switch (stage) {
default:
case 2:
destroy_workqueue(ddb_wq);
/* fall-through */
case 1:
ddb_class_destroy();
break;
}
return error;
}
int ddb_init_ddbridge(void)
{
if (ddb_class_create() < 0)
return -1;
ddb_wq = alloc_workqueue("ddbridge", 0, 0);
if (!ddb_wq)
return ddb_exit_ddbridge(1, -1);
return 0;
}

21
drivers/media/pci/ddbridge/ddbridge-main.c
View file

@ -282,32 +282,25 @@ static struct pci_driver ddb_pci_driver = {
static __init int module_init_ddbridge(void)
{
int stat = -1;
int stat;
pr_info("Digital Devices PCIE bridge driver "
DDBRIDGE_VERSION
", Copyright (C) 2010-17 Digital Devices GmbH\n");
if (ddb_class_create() < 0)
return -1;
ddb_wq = create_workqueue("ddbridge");
if (!ddb_wq)
goto exit1;
stat = ddb_init_ddbridge();
if (stat < 0)
return stat;
stat = pci_register_driver(&ddb_pci_driver);
if (stat < 0)
goto exit2;
return stat;
exit2:
destroy_workqueue(ddb_wq);
exit1:
ddb_class_destroy();
ddb_exit_ddbridge(0, stat);
return stat;
}
static __exit void module_exit_ddbridge(void)
{
pci_unregister_driver(&ddb_pci_driver);
destroy_workqueue(ddb_wq);
ddb_class_destroy();
ddb_exit_ddbridge(0, 0);
}
module_init(module_init_ddbridge);

7
drivers/media/pci/ddbridge/ddbridge.h
View file

@ -368,9 +368,6 @@ int ddbridge_flashread(struct ddb *dev, u32 link, u8 *buf, u32 addr, u32 len);
/****************************************************************************/
/* ddbridge-main.c (modparams) */
extern struct workqueue_struct *ddb_wq;
/* ddbridge-core.c */
void ddb_ports_detach(struct ddb *dev);
void ddb_ports_release(struct ddb *dev);
@ -383,9 +380,9 @@ void ddb_ports_init(struct ddb *dev);
int ddb_buffers_alloc(struct ddb *dev);
int ddb_ports_attach(struct ddb *dev);
int ddb_device_create(struct ddb *dev);
int ddb_class_create(void);
void ddb_class_destroy(void);
int ddb_init(struct ddb *dev);
void ddb_unmap(struct ddb *dev);
int ddb_exit_ddbridge(int stage, int error);
int ddb_init_ddbridge(void);
#endif /* DDBRIDGE_H */