[media] lgdt3306a: fix ERROR: do not use assignment in if condition

Just CodingStyle fix.

Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c
index 3451e77..91d9862 100644
--- a/drivers/media/dvb-frontends/lgdt3306a.c
+++ b/drivers/media/dvb-frontends/lgdt3306a.c
@@ -1600,7 +1600,8 @@
 
 	if (re_tune) {
 		state->current_frequency = -1; /* force re-tune */
-		if ((ret = lgdt3306a_set_parameters(fe)) != 0)
+		ret = lgdt3306a_set_parameters(fe);
+		if (ret != 0)
 			return ret;
 	}
 	*delay = 125;