media: media/platform: add const to v4l2_file_operations structures

Declare v4l2_file_operations structures as const as they are only stored
in the fops field of video_device structures. This field is of type
const, so declare v4l2_file_operations structures with similar properties
as const.

Cross compiled bfin_capture.o for blackfin arch. vpbe_display.o file did
not cross compile for arm. Could not find any architecture matching the
configuraion symbol for fsl-viu.c file.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/blackfin/bfin_capture.c

@@ -769,7 +769,7 @@ static const struct v4l2_ioctl_ops bcap_ioctl_ops = {
 	.vidioc_log_status       = bcap_log_status,
 };
 
-static struct v4l2_file_operations bcap_fops = {
+static const struct v4l2_file_operations bcap_fops = {
 	.owner = THIS_MODULE,
 	.open = v4l2_fh_open,
 	.release = vb2_fop_release,

drivers/media/platform/davinci/vpbe_display.c

@@ -1275,7 +1275,7 @@ static const struct v4l2_ioctl_ops vpbe_ioctl_ops = {
 	.vidioc_enum_dv_timings	 = vpbe_display_enum_dv_timings,
 };
 
-static struct v4l2_file_operations vpbe_fops = {
+static const struct v4l2_file_operations vpbe_fops = {
 	.owner = THIS_MODULE,
 	.open = vpbe_display_open,
 	.release = vpbe_display_release,

drivers/media/platform/davinci/vpif_capture.c

@@ -1344,7 +1344,7 @@ static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
 };
 
 /* vpif file operations */
-static struct v4l2_file_operations vpif_fops = {
+static const struct v4l2_file_operations vpif_fops = {
 	.owner = THIS_MODULE,
 	.open = v4l2_fh_open,
 	.release = vb2_fop_release,

drivers/media/platform/fsl-viu.c

@@ -1340,7 +1340,7 @@ static int viu_mmap(struct file *file, struct vm_area_struct *vma)
 	return ret;
 }
 
-static struct v4l2_file_operations viu_fops = {
+static const struct v4l2_file_operations viu_fops = {
 	.owner		= THIS_MODULE,
 	.open		= viu_open,
 	.release	= viu_release,

drivers/media/platform/soc_camera/soc_camera.c

@@ -820,7 +820,7 @@ static unsigned int soc_camera_poll(struct file *file, poll_table *pt)
 	return res;
 }
 
-static struct v4l2_file_operations soc_camera_fops = {
+static const struct v4l2_file_operations soc_camera_fops = {
 	.owner		= THIS_MODULE,
 	.open		= soc_camera_open,
 	.release	= soc_camera_close,