From 9adea1c00df74823e1719ebbcb86c972c4c2aba1 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Fri, 18 Apr 2008 20:26:04 -0300 Subject: [PATCH] V4L/DVB (7943): tuner: add macro, hybrid_tuner_report_instance_count Create a macro to report the number of instances of the tuner driver currently in use. This will allow drivers to perform specific cleanups before destroying the last instance of a tuner. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/tuner-i2c.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/common/tuners/tuner-i2c.h b/drivers/media/common/tuners/tuner-i2c.h index 3ad6c8e..cb1c714 100644 --- a/drivers/media/common/tuners/tuner-i2c.h +++ b/drivers/media/common/tuners/tuner-i2c.h @@ -170,4 +170,12 @@ __fail: \ __ret; \ }) +#define hybrid_tuner_report_instance_count(state) \ +({ \ + int __ret = 0; \ + if (state) \ + __ret = state->i2c_props.count; \ + __ret; \ +}) + #endif /* __TUNER_I2C_H__ */ -- 2.7.4