[PATCH] regulator: wm8400: Constify struct regulator_desc

[Christophe JAILLET]

'struct regulator_desc' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
   4419	   2512	      0	   6931	   1b13	drivers/regulator/wm8400-regulator.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
   6307	    624	      0	   6931	   1b13	drivers/regulator/wm8400-regulator.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
--
Compile tested only
---
 drivers/regulator/wm8400-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index c4a229f66dec..fb3ca7956d00 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -112,7 +112,7 @@ static const struct regulator_ops wm8400_dcdc_ops = {
 	.get_optimum_mode = wm8400_dcdc_get_optimum_mode,
 };
 
-static struct regulator_desc regulators[] = {
+static const struct regulator_desc regulators[] = {
 	{
 		.name = "LDO1",
 		.id = WM8400_LDO1,
-- 
2.46.0