[media] v4l2: pass std by value to the write-only s_std ioctl

This ioctl is defined as IOW, so pass the argument by value instead of by
reference. I could have chosen to add const instead, but this is 1) easier
to handle in drivers and 2) consistent with the s_std subdev operation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
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>

1 files changed, 9 insertions, 9 deletions

diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c
index 852f11e0d636..080f179070a6 100644
--- a/drivers/media/pci/ivtv/ivtv-ioctl.c
+++ b/drivers/media/pci/ivtv/ivtv-ioctl.c
@@ -1103,10 +1103,10 @@ static int ivtv_g_std(struct file *file, void *fh, v4l2_std_id *std)
         return 0;
 }
 
-void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id *std)
+void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id std)
 {
-        itv->std = *std;
-        itv->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
+        itv->std = std;
+        itv->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
         itv->is_50hz = !itv->is_60hz;
         cx2341x_handler_set_50hz(&itv->cxhdl, itv->is_50hz);
         itv->cxhdl.width = 720;
@@ -1122,15 +1122,15 @@ void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id *std)
         ivtv_call_all(itv, core, s_std, itv->std);
 }
 
-void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id *std)
+void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std)
 {
         struct yuv_playback_info *yi = &itv->yuv_info;
         DEFINE_WAIT(wait);
         int f;
 
         /* set display standard */
-        itv->std_out = *std;
-        itv->is_out_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
+        itv->std_out = std;
+        itv->is_out_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
         itv->is_out_50hz = !itv->is_out_60hz;
         ivtv_call_all(itv, video, s_std_output, itv->std_out);
 
@@ -1168,14 +1168,14 @@ void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id *std)
         }
 }
 
-static int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std)
+static int ivtv_s_std(struct file *file, void *fh, v4l2_std_id std)
 {
         struct ivtv *itv = fh2id(fh)->itv;
 
-        if ((*std & V4L2_STD_ALL) == 0)
+        if ((std & V4L2_STD_ALL) == 0)
                 return -EINVAL;
 
-        if (*std == itv->std)
+        if (std == itv->std)
                 return 0;
 
         if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ||