ALSA: opl3sa2: constify pnp_device_id and pnp_card_device_id

*_device_id are not supposed to change at runtime. All functions
working with *_device_id provided by <linux/pnp.h> work with
const *_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 4098e3e0353d8f6d7e57428d70d491301585ac3e..7cce4cd4a23b620ae617723614243c1285fc4bf1 100644 (file)
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -141,7 +141,7 @@ struct snd_opl3sa2 {
 
 #ifdef CONFIG_PNP
 
-static struct pnp_device_id snd_opl3sa2_pnpbiosids[] = {
+static const struct pnp_device_id snd_opl3sa2_pnpbiosids[] = {
        { .id = "YMH0021" },
        { .id = "NMX2210" },    /* Gateway Solo 2500 */
        { .id = "" }            /* end */
@@ -149,7 +149,7 @@ static struct pnp_device_id snd_opl3sa2_pnpbiosids[] = {
 
 MODULE_DEVICE_TABLE(pnp, snd_opl3sa2_pnpbiosids);
 
-static struct pnp_card_device_id snd_opl3sa2_pnpids[] = {
+static const struct pnp_card_device_id snd_opl3sa2_pnpids[] = {
        /* Yamaha YMF719E-S (Genius Sound Maker 3DX) */
        { .id = "YMH0020", .devs = { { "YMH0021" } } },
        /* Yamaha OPL3-SA3 (integrated on Intel's Pentium II AL440LX motherboard) */