char: constify of_device_id array

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/hw_random/pasemi-rng.c

@@ -133,7 +133,7 @@ static int rng_remove(struct platform_device *dev)
 	return 0;
 }
 
-static struct of_device_id rng_match[] = {
+static const struct of_device_id rng_match[] = {
 	{ .compatible      = "1682m-rng", },
 	{ .compatible      = "pasemi,pwrficient-rng", },
 	{ },

drivers/char/hw_random/powernv-rng.c

@@ -61,7 +61,7 @@ static int powernv_rng_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id powernv_rng_match[] = {
+static const struct of_device_id powernv_rng_match[] = {
 	{ .compatible	= "ibm,power-rng",},
 	{},
 };

drivers/char/hw_random/ppc4xx-rng.c

@@ -123,7 +123,7 @@ static int ppc4xx_rng_remove(struct platform_device *dev)
 	return 0;
 }
 
-static struct of_device_id ppc4xx_rng_match[] = {
+static const struct of_device_id ppc4xx_rng_match[] = {
 	{ .compatible = "ppc4xx-rng", },
 	{ .compatible = "amcc,ppc460ex-rng", },
 	{ .compatible = "amcc,ppc440epx-rng", },

drivers/char/ipmi/ipmi_si_intf.c

@@ -2664,7 +2664,7 @@ static struct pci_driver ipmi_pci_driver = {
 };
 #endif /* CONFIG_PCI */
 
-static struct of_device_id ipmi_match[];
+static const struct of_device_id ipmi_match[];
 static int ipmi_probe(struct platform_device *dev)
 {
 #ifdef CONFIG_OF
@@ -2761,7 +2761,7 @@ static int ipmi_remove(struct platform_device *dev)
 	return 0;
 }
 
-static struct of_device_id ipmi_match[] =
+static const struct of_device_id ipmi_match[] =
 {
 	{ .type = "ipmi", .compatible = "ipmi-kcs",
 	  .data = (void *)(unsigned long) SI_KCS },

drivers/char/xillybus/xillybus_of.c

@@ -31,7 +31,7 @@ MODULE_LICENSE("GPL v2");
 static const char xillyname[] = "xillybus_of";
 
 /* Match table for of_platform binding */
-static struct of_device_id xillybus_of_match[] = {
+static const struct of_device_id xillybus_of_match[] = {
 	{ .compatible = "xillybus,xillybus-1.00.a", },
 	{ .compatible = "xlnx,xillybus-1.00.a", }, /* Deprecated */
 	{}