V4L/DVB (7137): tuner: return number of instances remaining after hybrid_tuner_release_state

Assign the number of instances remaining as the return value of
hybrid_tuner_release_state, in case there is any extra cleanup that
the tuner driver needs to do after an instance has been destroyed.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/media/video/tuner-i2c.h b/drivers/media/video/tuner-i2c.h
index 8ec5b41d459..c53c327a487 100644
--- a/drivers/media/video/tuner-i2c.h
+++ b/drivers/media/video/tuner-i2c.h
@@ -155,13 +155,17 @@ __fail:									\
         __ret;                                                          \
 })
 
-#define hybrid_tuner_release_state(state) do {                          \
+#define hybrid_tuner_release_state(state)                               \
+({                                                                      \
+        int __ret;                                                      \
         state->i2c_props.count--;                                       \
+        __ret = state->i2c_props.count;                                 \
         if (!state->i2c_props.count) {                                  \
                 __tuner_info(state->i2c_props, "destroying instance\n");\
                 list_del(&state->hybrid_tuner_instance_list);           \
                 kfree(state);                                           \
         }                                                               \
-} while (0)
+        __ret;                                                          \
+})
 
 #endif /* __TUNER_I2C_H__ */