[ALSA] Fix the default id of multiple cards

EMU10K1/EMU10K2 driver
Fixed the default id string in case identical multiple cards exist.

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

1 files changed, 15 insertions, 1 deletions

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index a2fa5012c843..c51a8ae464e2 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -787,8 +787,22 @@ int __devinit snd_emu10k1_create(snd_card_t * card,
         else
                 snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x\n", c->name, pci->vendor, pci->device, emu->serial);
         
-        if (!*card->id && c->id)
+        if (!*card->id && c->id) {
+                int i, n = 0;
                 strlcpy(card->id, c->id, sizeof(card->id));
+                for (;;) {
+                        for (i = 0; i < snd_ecards_limit; i++) {
+                                if (snd_cards[i] && !strcmp(snd_cards[i]->id, card->id))
+                                        break;
+                        }
+                        if (i >= snd_ecards_limit)
+                                break;
+                        n++;
+                        if (n >= SNDRV_CARDS)
+                                break;
+                        snprintf(card->id, sizeof(card->id), "%s_%d", c->id, n);
+                }
+        }
 
         is_audigy = emu->audigy = c->emu10k2_chip;