[RFC PATCH 4/11] pcmcia/ds: driver layer error checking

[Dominik Brodowski <linux@dominikbrodowski.net>]

From: Randy Dunlap <rdunlap@xenotime.net>
Date: Fri, 20 Oct 2006 14:44:12 -0700
Subject: [PATCH] pcmcia/ds: driver layer error checking

Check driver layer return values in pcmcia/ds.c

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/ds.c |   16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 74b3124..af392bf 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -1292,10 +1292,22 @@ struct bus_type pcmcia_bus_type = {
 
 static int __init init_pcmcia_bus(void)
 {
+	int ret;
+
 	spin_lock_init(&pcmcia_dev_list_lock);
 
-	bus_register(&pcmcia_bus_type);
-	class_interface_register(&pcmcia_bus_interface);
+	ret = bus_register(&pcmcia_bus_type);
+	if (ret < 0) {
+		printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
+		return ret;
+	}
+	ret = class_interface_register(&pcmcia_bus_interface);
+	if (ret < 0) {
+		printk(KERN_WARNING
+			"pcmcia: class_interface_register error: %d\n", ret);
+		bus_unregister(&pcmcia_bus_type);
+		return ret;
+	}
 
 	pcmcia_setup_ioctl();
 
-- 
1.4.3