diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-08-21 18:26:29 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-09-03 17:32:02 +0400 |
| commit | 38b2b8794d0ae7e086199e6077d2f234a3b69ab8 (patch) | |
| tree | 1883a38d3088064684bcbf822cec80510aa2ff20 /drivers/media/pci/cx25821/cx25821-video-upstream.c | |
| parent | a7547af7d295bae3853accde5c746159b3e0e9de (diff) | |
| download | linux-38b2b8794d0ae7e086199e6077d2f234a3b69ab8.tar.xz | |
[media] cx25821: fix sparse warning
drivers/media/pci/cx25821/cx25821-video-upstream.c:334:25: warning: incorrect type in argument 2 (different address spaces)
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-video-upstream.c')
| -rw-r--r-- | drivers/media/pci/cx25821/cx25821-video-upstream.c | 5 |
1 files 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 1f43be0b04c8..a664997e1958 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++; |