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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/common/tuners/tda827x.c b/drivers/media/common/tuners/tda827x.c
index d30d2c9094d9..8555d9cf9051 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");