V4L/DVB: drivers/media: Make static data tables and strings const

Making static data const avoids allocation of additional r/w memory and
reduces initialisation time.  It also provides some additional opportunities
for compiler optimisations.

Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index 499f8d5..f7d71ac 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -313,7 +313,7 @@
 
 /* ----------------------------------------------------------- */
 
-static void do_cancel_buffers(struct cx8802_dev *dev, char *reason, int restart)
+static void do_cancel_buffers(struct cx8802_dev *dev, const char *reason, int restart)
 {
 	struct cx88_dmaqueue *q = &dev->mpegq;
 	struct cx88_buffer *buf;
@@ -358,7 +358,7 @@
 	do_cancel_buffers(dev,"timeout",1);
 }
 
-static char *cx88_mpeg_irqs[32] = {
+static const char * cx88_mpeg_irqs[32] = {
 	"ts_risci1", NULL, NULL, NULL,
 	"ts_risci2", NULL, NULL, NULL,
 	"ts_oflow",  NULL, NULL, NULL,
@@ -849,7 +849,7 @@
 	kfree(dev);
 }
 
-static struct pci_device_id cx8802_pci_tbl[] = {
+static const struct pci_device_id cx8802_pci_tbl[] = {
 	{
 		.vendor       = 0x14f1,
 		.device       = 0x8802,