diff options
| author | Darron Broad <darron@kewl.org> | 2008-10-21 11:28:46 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-21 14:32:08 -0200 |
| commit | 878595f6e7225c996523965b61ce3fe29addca9d (patch) | |
| tree | ca45e688480b5a32c060897a10e6bc6ae1a6ed62 | |
| parent | 0fcd488d8d90d2332f9ff463929ec4b7676102b6 (diff) | |
V4L/DVB (9335): videobuf: split unregister bus creating self-contained frontend de-allocator
This creates a self contained frontend de-allocator
for the instances where an adapter has not been
registered yet frontend de-allocation may
be required.
Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/videobuf-dvb.c | 52 | ||||
| -rw-r--r-- | include/media/videobuf-dvb.h | 1 |
2 files changed, 30 insertions, 23 deletions
diff --git a/drivers/media/video/videobuf-dvb.c b/drivers/media/video/videobuf-dvb.c index 917277d3660..0e7dcba8e4a 100644 --- a/drivers/media/video/videobuf-dvb.c +++ b/drivers/media/video/videobuf-dvb.c @@ -296,29 +296,7 @@ EXPORT_SYMBOL(videobuf_dvb_register_bus); void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f) { - struct list_head *list, *q; - struct videobuf_dvb_frontend *fe; - - mutex_lock(&f->lock); - list_for_each_safe(list, q, &f->felist) { - fe = list_entry(list, struct videobuf_dvb_frontend, felist); - if (fe->dvb.net.dvbdev) { - dvb_net_release(&fe->dvb.net); - fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx, - &fe->dvb.fe_mem); - fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx, - &fe->dvb.fe_hw); - dvb_dmxdev_release(&fe->dvb.dmxdev); - dvb_dmx_release(&fe->dvb.demux); - dvb_unregister_frontend(fe->dvb.frontend); - } - if (fe->dvb.frontend) - /* always allocated, may have been reset */ - dvb_frontend_detach(fe->dvb.frontend); - list_del(list); - kfree(fe); - } - mutex_unlock(&f->lock); + videobuf_dvb_dealloc_frontends(f); dvb_unregister_adapter(&f->adapter); } @@ -389,3 +367,31 @@ fail_alloc: return fe; } EXPORT_SYMBOL(videobuf_dvb_alloc_frontend); + +void videobuf_dvb_dealloc_frontends(struct videobuf_dvb_frontends *f) +{ + struct list_head *list, *q; + struct videobuf_dvb_frontend *fe; + + mutex_lock(&f->lock); + list_for_each_safe(list, q, &f->felist) { + fe = list_entry(list, struct videobuf_dvb_frontend, felist); + if (fe->dvb.net.dvbdev) { + dvb_net_release(&fe->dvb.net); + fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx, + &fe->dvb.fe_mem); + fe->dvb.demux.dmx.remove_frontend(&fe->dvb.demux.dmx, + &fe->dvb.fe_hw); + dvb_dmxdev_release(&fe->dvb.dmxdev); + dvb_dmx_release(&fe->dvb.demux); + dvb_unregister_frontend(fe->dvb.frontend); + } + if (fe->dvb.frontend) + /* always allocated, may have been reset */ + dvb_frontend_detach(fe->dvb.frontend); + list_del(list); /* remove list entry */ + kfree(fe); /* free frontend allocation */ + } + mutex_unlock(&f->lock); +} +EXPORT_SYMBOL(videobuf_dvb_dealloc_frontends); diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h index 80471c2b634..6ba4f1271d2 100644 --- a/include/media/videobuf-dvb.h +++ b/include/media/videobuf-dvb.h @@ -47,6 +47,7 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f, void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f); struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(struct videobuf_dvb_frontends *f, int id); +void videobuf_dvb_dealloc_frontends(struct videobuf_dvb_frontends *f); struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id); int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_frontend *p); |