V4L/DVB (6445): tuner-core: improve comments inside function fe_release()

Explain who is responsible for freeing analog_demod_priv

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

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 1e9c9755dec2..88db8b33c864 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -103,7 +103,15 @@ static void fe_release(struct dvb_frontend *fe)
                 fe->ops.tuner_ops.release(fe);
 
         fe->ops.analog_demod_ops = NULL;
-        /* DO NOT kfree(t->fe.analog_demod_priv) */
+
+        /* DO NOT kfree(fe->analog_demod_priv)
+         *
+         * If we are in this function, analog_demod_priv contains a pointer
+         * to struct tuner *t.  This will be kfree'd in tuner_detach().
+         *
+         * Otherwise, fe->ops.analog_demod_ops->release will
+         * handle the cleanup for analog demodulator modules.
+         */
         fe->analog_demod_priv = NULL;
 }