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authorDarron Broad <darron@kewl.org>2008-10-21 11:28:46 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-21 14:32:08 -0200
commit878595f6e7225c996523965b61ce3fe29addca9d (patch)
treeca45e688480b5a32c060897a10e6bc6ae1a6ed62
parent0fcd488d8d90d2332f9ff463929ec4b7676102b6 (diff)
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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.c52
-rw-r--r--include/media/videobuf-dvb.h1
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);