From: Hans Verkuil <[email protected]> drivers/media/pci/cx25821/cx25821-video-upstream.c:334:25: warning: incorrect type in argument 2 (different address spaces)
Signed-off-by: Hans Verkuil <[email protected]> --- drivers/media/pci/cx25821/cx25821-video-upstream.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream.c b/drivers/media/pci/cx25821/cx25821-video-upstream.c index 1f43be0..a664997 100644 --- a/drivers/media/pci/cx25821/cx25821-video-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-video-upstream.c @@ -330,8 +330,9 @@ int cx25821_write_frame(struct cx25821_channel *chan, if (frame_size - curpos < count) count = frame_size - curpos; - memcpy((char *)out->_data_buf_virt_addr + frame_offset + curpos, - data, count); + if (copy_from_user((__force char *)out->_data_buf_virt_addr + frame_offset + curpos, + data, count)) + return -EFAULT; curpos += count; if (curpos == frame_size) { out->_frame_count++; -- 2.1.0.rc1 -- 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
