[PATCH] EISA: tidy-up driver_register() return value

Remove the assumption that driver_register() returns the number of devices
bound to the driver.  In fact, it returns zero for success or a negative
error value.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Acked-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/net/dgrs.c b/drivers/net/dgrs.c
index 32d13166..e175d48 100644
--- a/drivers/net/dgrs.c
+++ b/drivers/net/dgrs.c
@@ -1551,7 +1551,7 @@
 static int __init dgrs_init_module (void)
 {
 	int	i;
-	int	cardcount = 0;
+	int	err;
 
 	/*
 	 *	Command line variable overrides
@@ -1593,13 +1593,13 @@
 	 *	Find and configure all the cards
 	 */
 #ifdef CONFIG_EISA
-	cardcount = eisa_driver_register(&dgrs_eisa_driver);
-	if (cardcount < 0)
-		return cardcount;
+	err = eisa_driver_register(&dgrs_eisa_driver);
+	if (err)
+		return err;
 #endif
-	cardcount = pci_register_driver(&dgrs_pci_driver);
-	if (cardcount)
-		return cardcount;
+	err = pci_register_driver(&dgrs_pci_driver);
+	if (err)
+		return err;
 	return 0;
 }