lkml.org 
[lkml]   [2016]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH 08/12] [media] dvb_frontend: add "detach" callback
From
Date
Prepare for making "release" asynchronous (via kref).  Some operations
may need to be run synchronously in dvb_frontend_detach(), and that's
why we need a "detach" callback.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
---
drivers/media/dvb-core/dvb_frontend.c | 1 +
drivers/media/dvb-core/dvb_frontend.h | 7 ++++++-
2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 1177414..5bbe389 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -2770,6 +2770,7 @@ void dvb_frontend_detach(struct dvb_frontend* fe)
dvb_frontend_invoke_release(fe, fe->ops.release_sec);
dvb_frontend_invoke_release(fe, fe->ops.tuner_ops.release);
dvb_frontend_invoke_release(fe, fe->ops.analog_ops.release);
+ dvb_frontend_invoke_release(fe, fe->ops.detach);
dvb_frontend_invoke_release(fe, fe->ops.release);
}
EXPORT_SYMBOL(dvb_frontend_detach);
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h
index 5bfb16b..d535571 100644
--- a/drivers/media/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb-core/dvb_frontend.h
@@ -330,7 +330,11 @@ struct dtv_frontend_properties;
*
* @info: embedded struct dvb_tuner_info with tuner properties
* @delsys: Delivery systems supported by the frontend
- * @release: callback function called when frontend is dettached.
+ * @detach: callback function called when frontend is detached.
+ * drivers should clean up, but not yet free the struct
+ * dvb_frontend allocation.
+ * @release: callback function called when frontend is ready to be
+ * freed.
* drivers should free any allocated memory.
* @release_sec: callback function requesting that the Satelite Equipment
* Control (SEC) driver to release and free any memory
@@ -415,6 +419,7 @@ struct dvb_frontend_ops {

u8 delsys[MAX_DELSYS];

+ void (*detach)(struct dvb_frontend *fe);
void (*release)(struct dvb_frontend* fe);
void (*release_sec)(struct dvb_frontend* fe);

\
 
 \ /
  Last update: 2016-08-10 00:21    [W:0.230 / U:0.256 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site