From: Hans Verkuil <[email protected]> The dma_map_sg() function can fail, so check for the return value.
Signed-off-by: Hans Verkuil <[email protected]> --- drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c index ab0b1a6..d9d0941 100644 --- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c +++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c @@ -478,8 +478,9 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc, vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len); /* may discard all previous data in vbuf->sgl */ - dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, - DMA_FROM_DEVICE); + if (!dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, + DMA_FROM_DEVICE)) + return -ENOMEM; ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev), frame_size, SOLO_JPEG_EXT_ADDR(solo_dev), @@ -525,8 +526,9 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc, frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN); /* may discard all previous data in vbuf->sgl */ - dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, - DMA_FROM_DEVICE); + if (!dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, + DMA_FROM_DEVICE)) + return -ENOMEM; ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size, SOLO_MP4E_EXT_ADDR(solo_dev), SOLO_MP4E_EXT_SIZE(solo_dev)); -- 2.0.0.rc0 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
