ALSA: es1688: constify pnp_card_device_id

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

Signed-off-by: Arvind Yadav <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>

diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index 36320e7f278931719d7b8f8adcb935967ce2ecab..a826c138e7f555ec3a0e3345265f646bc3ff135e 100644 (file)
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -321,7 +321,7 @@ static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
 }
 #endif
 
-static struct pnp_card_device_id snd_es968_pnpids[] = {
+static const struct pnp_card_device_id snd_es968_pnpids[] = {
        { .id = "ESS0968", .devs = { { "@@@0968" }, } },
        { .id = "ESS0968", .devs = { { "ESS0968" }, } },
        { .id = "", } /* end */