From 69e329bf0268ac4ac74e87636b1c745373d4ed65 Mon Sep 17 00:00:00 2001
From: Thomas Viehweger <Thomas.Viehweger@marconi.com>
Date: Wed, 28 Mar 2007 21:22:37 -0400
Subject: [PATCH] DVB: isl6421: don't reference freed memory

DVB: isl6421: don't reference freed memory

After freeing a block there should be no reference to this block.

(cherry picked from commit 09d4895488d4df5c58b739573846f514ceabc911)

Signed-off-by: Thomas Viehweger <Thomas.Viehweger@marconi.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/media/dvb/frontends/isl6421.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/dvb/frontends/isl6421.c b/drivers/media/dvb/frontends/isl6421.c
index ef319369ec26..c967148a5945 100644
--- a/drivers/media/dvb/frontends/isl6421.c
+++ b/drivers/media/dvb/frontends/isl6421.c
@@ -122,6 +122,7 @@ struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter
 	/* detect if it is present or not */
 	if (isl6421_set_voltage(fe, SEC_VOLTAGE_OFF)) {
 		kfree(isl6421);
+		fe->sec_priv = NULL;
 		return NULL;
 	}
 
-- 
2.30.9