ALSA CVS update - Jaroslav Kysela <perex@suse.cz>

RME HDSP driver
Fixed wrong assert, added checks for copy_*_user functions

sound/pci/rme9652/hdsp.c

@@ -3810,7 +3810,7 @@ static char *hdsp_channel_buffer_location(hdsp_t *hdsp,
 {
 	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;
@@ -3833,7 +3833,8 @@ static int snd_hdsp_playback_copy(snd_pcm_substream_t *substream, int channel,
 
 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
 	snd_assert(channel_buf != NULL, return -EIO);
-	copy_from_user(channel_buf + pos * 4, src, count * 4);
+	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
+		return -EFAULT;
 	return count;
 }
 
@@ -3847,7 +3848,8 @@ static int snd_hdsp_capture_copy(snd_pcm_substream_t *substream, int channel,
 
 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
 	snd_assert(channel_buf != NULL, return -EIO);
-	copy_to_user(dst, channel_buf + pos * 4, count * 4);
+	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
+		return -EFAULT;
 	return count;
 }