hdsp snd_assert

@@ -3810,8 +3810,8 @@
 {
 	int mapped_channel;
 
-        snd_assert(channel >= 0 || channel < hdsp->max_channels, return NULL);
-        
+	snd_assert(channel >= 0 && channel < hdsp->max_channels, return NULL);
+ 
 	if ((mapped_channel = hdsp->channel_map[channel]) < 0) {
 		return NULL;
 	}