patch-2.1.68 linux/drivers/sound/dmabuf.c

• Lines: 15
• Date: Sun Nov 30 10:30:18 1997
• Orig file: v2.1.67/linux/drivers/sound/dmabuf.c
• Orig date: Sat Nov 29 11:25:11 1997

diff -u --recursive --new-file v2.1.67/linux/drivers/sound/dmabuf.c linux/drivers/sound/dmabuf.c
@@ -1539,10 +1539,11 @@
 {
 /* This routine is called when driver is being unloaded */
 #ifdef RUNTIME_DMA_ALLOC
-	sound_free_dmap (dev, audio_devs[dev]->dmap_out, 
-			 audio_devs[dev]->dmap_out->dma);
+	if (audio_devs[dev])
+		sound_free_dmap (dev, audio_devs[dev]->dmap_out, 
+				 audio_devs[dev]->dmap_out->dma);
 
-	if (audio_devs[dev]->flags & DMA_DUPLEX)
+	if (audio_devs[dev] && audio_devs[dev]->flags & DMA_DUPLEX)
 		sound_free_dmap (dev, audio_devs[dev]->dmap_in, 
 				 audio_devs[dev]->dmap_in->dma);
 #endif