[media] c8sectpfe: Combine three checks into a single if block

The variable "tsin" was checked three times in a loop iteration of the
c8sectpfe_tuner_unregister_frontend() function.
This implementation detail could be improved by the combination of the
involved statements into a single if block so that this variable will be
checked only once there.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/platform/sti/c8sectpfe/c8sectpfe-common.c

@@ -209,19 +209,20 @@ void c8sectpfe_tuner_unregister_frontend(struct c8sectpfe *c8sectpfe,
 
 		tsin = fei->channel_data[n];
 
-		if (tsin && tsin->frontend) {
+		if (tsin) {
+			if (tsin->frontend) {
 				dvb_unregister_frontend(tsin->frontend);
 				dvb_frontend_detach(tsin->frontend);
 			}
 
-		if (tsin)
 			i2c_put_adapter(tsin->i2c_adapter);
 
-		if (tsin && tsin->i2c_client) {
+			if (tsin->i2c_client) {
 				module_put(tsin->i2c_client->dev.driver->owner);
 				i2c_unregister_device(tsin->i2c_client);
 			}
 		}
+	}
 
 	c8sectpfe_delete(c8sectpfe);
 };