ALSA: es18xx: Constify hw_constraints

snd_pcm_hw_constraint_list(), *_ratnums() and *_ratdens() receive the
const pointers.  Constify the corresponding static objects for better
hardening.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 0cabe2b..ae17a65 100644 (file)
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -369,7 +369,7 @@ static int snd_es18xx_reset_fifo(struct snd_es18xx *chip)
        return 0;
 }
 
-static struct snd_ratnum new_clocks[2] = {
+static const struct snd_ratnum new_clocks[2] = {
        {
                .num = 793800,
                .den_min = 1,
@@ -384,12 +384,12 @@ static struct snd_ratnum new_clocks[2] = {
        }
 };
 
-static struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
+static const struct snd_pcm_hw_constraint_ratnums new_hw_constraints_clocks = {
        .nrats = 2,
        .rats = new_clocks,
 };
 
-static struct snd_ratnum old_clocks[2] = {
+static const struct snd_ratnum old_clocks[2] = {
        {
                .num = 795444,
                .den_min = 1,
@@ -404,7 +404,7 @@ static struct snd_ratnum old_clocks[2] = {
        }
 };
 
-static struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
+static const struct snd_pcm_hw_constraint_ratnums old_hw_constraints_clocks  = {
        .nrats = 2,
        .rats = old_clocks,
 };