V4L/DVB (6192): Ensure start_dma() is capable of starting dma on port VIDB

start_dma() would fail to start dma if a device used VIDB (portb).

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index f5b73c4..907ea4c 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1015,9 +1015,12 @@
 	/* write TS length to chip */
 	cx_write(port->reg_lngth, buf->vb.width);
 
-	if (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB)) {
-		printk( "%s() Failed. Unsupported value in .portc (0x%08x)\n",
-			__FUNCTION__, cx23885_boards[dev->board].portc );
+	if ( (!(cx23885_boards[dev->board].portb & CX23885_MPEG_DVB)) &&
+		(!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB)) ) {
+		printk( "%s() Failed. Unsupported value in .portb/c (0x%08x)/(0x%08x)\n",
+			__FUNCTION__,
+			cx23885_boards[dev->board].portb,
+			cx23885_boards[dev->board].portc );
 		return -EINVAL;
 	}