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Diffstat (limited to 'drivers/media/video/em28xx/em28xx-audio.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-audio.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 3c006103c1e..ac3292d7646 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/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,
@@ -161,8 +161,14 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
memset(dev->adev->transfer_buffer[i], 0x80, sb_size);
urb = usb_alloc_urb(EM28XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
- if (!urb)
+ if (!urb) {
+ em28xx_errdev("usb_alloc_urb failed!\n");
+ for (j = 0; j < i; j++) {
+ usb_free_urb(dev->adev->urb[j]);
+ kfree(dev->adev->transfer_buffer[j]);
+ }
return -ENOMEM;
+ }
urb->dev = dev->udev;
urb->context = dev;