OMAP: dma_chan[lch_head].flag & OMAP_DMA_ACTIVE tested twice in omap_dma_unlink_lch()

The same flag and bits were tested twice.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/dma.c

@@ -1183,7 +1183,7 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue)
 	}
 
 	if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
-	    (dma_chan[lch_head].flags & OMAP_DMA_ACTIVE)) {
+	    (dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) {
 		printk(KERN_ERR "omap_dma: You need to stop the DMA channels "
 		       "before unlinking\n");
 		dump_stack();