V4L/DVB (5742): Tuner: define release callback for mt20xx, tda9887 and tda8290

Define tuner release callbacks for mt20xx, tda9887 and tda8290, so that
these drivers can release their own private structures themselves.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index 7bdf968bf6e5..2614ea99a9c3 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -595,6 +595,14 @@ static void tda8290_init_tuner(struct i2c_client *c)
 
 /*---------------------------------------------------------------------*/
 
+static void tda8290_release(struct i2c_client *c)
+{
+        struct tuner *t = i2c_get_clientdata(c);
+
+        kfree(t->priv);
+        t->priv = NULL;
+}
+
 int tda8290_init(struct i2c_client *c)
 {
         struct tda8290_priv *priv = NULL;
@@ -663,6 +671,7 @@ int tda8290_init(struct i2c_client *c)
         t->set_radio_freq = set_radio_freq;
         t->has_signal = has_signal;
         t->standby = standby;
+        t->release = tda8290_release;
         priv->tda827x_lpsel = 0;
         t->mode = V4L2_TUNER_ANALOG_TV;