From 67642a0a58143761d7415f0587e0ac6dd6371251 Mon Sep 17 00:00:00 2001
From: Sigmund Augdal <sigmund@snap.tv>
Date: Thu, 5 Jun 2008 12:53:08 -0300
Subject: V4L/DVB (8000): tda827x: fix NULL pointer in tda827xa_lna_gain

Check that tda827x_config is defined before attempting to use it.

Signed-off-by: Sigmund Augdal <sigmund@snap.tv>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/common/tuners/tda827x.c b/drivers/media/common/tuners/tda827x.c
index d30d2c9..8555d9c 100644
--- a/drivers/media/common/tuners/tda827x.c
+++ b/drivers/media/common/tuners/tda827x.c
@@ -418,13 +418,13 @@ static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
 	unsigned char buf[] = {0x22, 0x01};
 	int arg;
 	int gp_func;
-	struct i2c_msg msg = { .addr = priv->cfg->switch_addr, .flags = 0,
-			       .buf = buf, .len = sizeof(buf) };
+	struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
 
 	if (NULL == priv->cfg) {
 		dprintk("tda827x_config not defined, cannot set LNA gain!\n");
 		return;
 	}
+	msg.addr = priv->cfg->switch_addr;
 	if (priv->cfg->config) {
 		if (high)
 			dprintk("setting LNA to high gain\n");
-- 
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