[ALSA] continue on IS_ERR from platform device registration

Continue with the next one on error from device registration.

This would seem the correct thing to do, even if it's not the probe()
error that we're getting.

Signed-off-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index cafb9b6..a733fab 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -390,10 +390,8 @@
 			continue;
 		device = platform_device_register_simple(GUSMAX_DRIVER,
 							 i, NULL, 0);
-		if (IS_ERR(device)) {
-			err = PTR_ERR(device);
-			goto errout;
-		}
+		if (IS_ERR(device))
+			continue;
 		devices[i] = device;
 		cards++;
 	}
@@ -401,14 +399,10 @@
 #ifdef MODULE
 		printk(KERN_ERR "GUS MAX soundcard not found or device busy\n");
 #endif
-		err = -ENODEV;
-		goto errout;
+		snd_gusmax_unregister_all();
+		return -ENODEV;
 	}
 	return 0;
-
- errout:
-	snd_gusmax_unregister_all();
-	return err;
 }
 
 static void __exit alsa_card_gusmax_exit(void)