[PATCH 3/12] PNP: adjust pnp_register_card_driver() signature

[Bjorn Helgaas <bjorn.helgaas@hp.com>]

Remove the assumption that pnp_register_card_driver() returns the
number of devices claimed.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Index: work-mm5/sound/isa/azt2320.c
===================================================================
--- work-mm5.orig/sound/isa/azt2320.c	2006-03-22 10:40:46.000000000 -0700
+++ work-mm5/sound/isa/azt2320.c	2006-03-22 10:41:03.000000000 -0700
@@ -310,6 +310,8 @@
 	return 0;
 }
 
+static unsigned int __devinitdata azt2320_devices;
+
 static int __devinit snd_azt2320_pnp_detect(struct pnp_card_link *card,
 					    const struct pnp_card_device_id *id)
 {
@@ -323,6 +325,7 @@
 		if (res < 0)
 			return res;
 		dev++;
+		azt2320_devices++;
 		return 0;
 	}
         return -ENODEV;
@@ -372,10 +375,13 @@
 
 static int __init alsa_card_azt2320_init(void)
 {
-	int cards;
+	int err;
+
+	err = pnp_register_card_driver(&azt2320_pnpc_driver);
+	if (err)
+		return err;
 
-	cards = pnp_register_card_driver(&azt2320_pnpc_driver);
-	if (cards <= 0) {
+	if (!azt2320_devices) {
 		pnp_unregister_card_driver(&azt2320_pnpc_driver);
 #ifdef MODULE
 		snd_printk(KERN_ERR "no AZT2320 based soundcards found\n");
-
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