V4L/DVB (9103): em28xx: HVR-900 B3C0 - fix audio clicking issue

Fixed audio clicking problem which could be heard when using analog tv or composite input
Signed-off-by: NWiktor Grebla <greblus@gmail.com>
Signed-off-by: NDouglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/em28xx/em28xx-audio.c

@@ -117,10 +117,10 @@ static void em28xx_audio_isocirq(struct urb *urb)
 
 			if (oldptr + length >= runtime->buffer_size) {
 				unsigned int cnt =
-				    runtime->buffer_size - oldptr - 1;
+				    runtime->buffer_size - oldptr;
 				memcpy(runtime->dma_area + oldptr * stride, cp,
 				       cnt * stride);
-				memcpy(runtime->dma_area, cp + cnt,
+				memcpy(runtime->dma_area, cp + cnt * stride,
 				       length * stride - cnt * stride);
 			} else {
 				memcpy(runtime->dma_area + oldptr * stride, cp,

drivers/media/video/em28xx/em28xx-cards.c

@@ -577,7 +577,7 @@ struct em28xx_board em28xx_boards[] = {
 		}, {
 			.type     = EM28XX_VMUX_COMPOSITE1,
 			.vmux     = TVP5150_COMPOSITE1,
-			.amux     = 1,
+			.amux     = 3,
 		}, {
 			.type     = EM28XX_VMUX_SVIDEO,
 			.vmux     = TVP5150_SVIDEO,