From: Thomas Viehweger <Thomas.Viehweger@marconi.com>
Date: Thu, 29 Mar 2007 01:22:37 +0000 (-0400)
Subject: DVB: isl6421: don't reference freed memory
X-Git-Tag: v2.6.20.5~15
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=69e329bf0268ac4ac74e87636b1c745373d4ed65;p=karo-tx-linux.git

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>
---

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;
 	}