[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/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index 2f13cd5..ed9d017 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -722,10 +722,8 @@
 #endif
 		device = platform_device_register_simple(WAVEFRONT_DRIVER,
 							 i, NULL, 0);
-		if (IS_ERR(device)) {
-			err = PTR_ERR(device);
-			goto errout;
-		}
+		if (IS_ERR(device))
+			continue;
 		platform_devices[i] = device;
 		cards++;
 	}
@@ -742,14 +740,10 @@
 #ifdef MODULE
 		printk (KERN_ERR "No WaveFront cards found or devices busy\n");
 #endif
-		err = -ENODEV;
-		goto errout;
+		snd_wavefront_unregister_all();
+		return -ENODEV;
 	}
 	return 0;
-
- errout:
-	snd_wavefront_unregister_all();
-	return err;
 }
 
 static void __exit alsa_card_wavefront_exit(void)