ALSA: sb: 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/sb/sb8_main.c b/sound/isa/sb/sb8_main.c
index 9043397fe62fa63e7113cce3b0148c1a1a260c72..0f302be4fb6df73b0e482310296b31df80e1bbe1 100644 (file)
--- a/sound/isa/sb/sb8_main.c
+++ b/sound/isa/sb/sb8_main.c
@@ -46,19 +46,19 @@ MODULE_LICENSE("GPL");
 #define SB8_DEN(v)     ((SB8_CLOCK + (v) / 2) / (v))
 #define SB8_RATE(v)    (SB8_CLOCK / SB8_DEN(v))
 
-static struct snd_ratnum clock = {
+static const struct snd_ratnum clock = {
        .num = SB8_CLOCK,
        .den_min = 1,
        .den_max = 256,
        .den_step = 1,
 };
 
-static struct snd_pcm_hw_constraint_ratnums hw_constraints_clock = {
+static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clock = {
        .nrats = 1,
        .rats = &clock,
 };
 
-static struct snd_ratnum stereo_clocks[] = {
+static const struct snd_ratnum stereo_clocks[] = {
        {
                .num = SB8_CLOCK,
                .den_min = SB8_DEN(22050),