[PATCH] PNP: adjust pnp_register_card_driver() signature: es968

Remove the assumption that pnp_register_card_driver() returns the
number of devices claimed.  And fix some __init/__devinit issues.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Jaroslav Kysela <perex@suse.cz>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/isa/sb/es968.c

@@ -124,7 +124,7 @@ static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
 	return 0;
 }
 
-static int __init snd_card_es968_probe(int dev,
+static int __devinit snd_card_es968_probe(int dev,
 					struct pnp_card_link *pcard,
 					const struct pnp_card_device_id *pid)
 {
@@ -182,6 +182,8 @@ static int __init snd_card_es968_probe(int dev,
 	return 0;
 }
 
+static unsigned int __devinitdata es968_devices;
+
 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
                                           const struct pnp_card_device_id *id)
 {
@@ -195,6 +197,7 @@ static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
 		if (res < 0)
 			return res;
 		dev++;
+		es968_devices++;
 		return 0;
 	}
 	return -ENODEV;
@@ -246,8 +249,11 @@ static struct pnp_card_driver es968_pnpc_driver = {
 
 static int __init alsa_card_es968_init(void)
 {
-	int cards = pnp_register_card_driver(&es968_pnpc_driver);
-	if (cards <= 0) {
+	int err = pnp_register_card_driver(&es968_pnpc_driver);
+	if (err)
+		return err;
+
+	if (!es968_devices) {
 		pnp_unregister_card_driver(&es968_pnpc_driver);
 #ifdef MODULE
 		snd_printk(KERN_ERR "no ES968 based soundcards found\n");