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>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
        return 0;
 }
 
-static unsigned int rates_48000[] = {
+static const unsigned int rates_48000[] = {
        48000,
 };
 
-static struct snd_pcm_hw_constraint_list constraints_48000 = {
+static const struct snd_pcm_hw_constraint_list constraints_48000 = {
        .count = ARRAY_SIZE(rates_48000),
        .list  = rates_48000,
 };
 
        return 0;
 }
 
-static unsigned int rates_48000[] = {
+static const unsigned int rates_48000[] = {
        48000,
 };
 
-static struct snd_pcm_hw_constraint_list constraints_48000 = {
+static const struct snd_pcm_hw_constraint_list constraints_48000 = {
        .count = ARRAY_SIZE(rates_48000),
        .list  = rates_48000,
 };