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@xxxxxxxxx>
---
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);
--
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