[media] DVB: dvb_frontend: check function pointers on reinitialize

Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
git-mirror · Sep 4, 2011 · 42f4e77 · 42f4e77
1 parent 1b19e42
commit 42f4e77
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -577,12 +577,10 @@ static int dvb_frontend_thread(void *data)
 
 		if (fepriv->reinitialise) {
 			dvb_frontend_init(fe);
-			if (fepriv->tone != -1) {
+			if (fe->ops.set_tone && fepriv->tone != -1)
 				fe->ops.set_tone(fe, fepriv->tone);
-			}
-			if (fepriv->voltage != -1) {
+			if (fe->ops.set_voltage && fepriv->voltage != -1)
 				fe->ops.set_voltage(fe, fepriv->voltage);
-			}
 			fepriv->reinitialise = 0;
 		}