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authorHans Verkuil <hans.verkuil@cisco.com>2013-03-24 08:28:46 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-24 08:47:01 -0300
commit977ba3b1b73f24fae2d0c8bd59d7a4696f1e0ccc (patch)
tree8a30d06717aacc154e851868c40e2596c3a572be /drivers/media/pci/ivtv/ivtv-ioctl.c
parentb5656e8b7363c4e248e6372dc34828d3dfb17832 (diff)
downloadvexpress-lsk-977ba3b1b73f24fae2d0c8bd59d7a4696f1e0ccc.tar.gz
[media] v4l2: add const to argument of write-only s_register ioctl
This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/ivtv/ivtv-ioctl.c')
-rw-r--r--drivers/media/pci/ivtv/ivtv-ioctl.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c
index 861e4629c7f..50379b26768 100644
--- a/drivers/media/pci/ivtv/ivtv-ioctl.c
+++ b/drivers/media/pci/ivtv/ivtv-ioctl.c
@@ -748,12 +748,15 @@ static int ivtv_g_register(struct file *file, void *fh, struct v4l2_dbg_register
return 0;
}
-static int ivtv_s_register(struct file *file, void *fh, struct v4l2_dbg_register *reg)
+static int ivtv_s_register(struct file *file, void *fh, const struct v4l2_dbg_register *reg)
{
struct ivtv *itv = fh2id(fh)->itv;
- if (v4l2_chip_match_host(&reg->match))
- return ivtv_itvc(itv, false, reg->reg, &reg->val);
+ if (v4l2_chip_match_host(&reg->match)) {
+ u64 val = reg->val;
+
+ return ivtv_itvc(itv, false, reg->reg, &val);
+ }
/* TODO: subdev errors should not be ignored, this should become a
subdev helper function. */
ivtv_call_all(itv, core, s_register, reg);