[PATCH 3/8] pcmcia: cm4000_cs: fix return value check

[Dominik Brodowski]

From: Akinobu Mita <akinobu.mita at gmail.com>
Date: Tue, 17 Oct 2006 15:25:59 +0900
Subject: [PATCH] cm4000_cs: fix return value check

The return value of class_create() need to be checked with IS_ERR().
And register_chrdev() returns errno on failure.
This patch includes these fixes for cm4000_cs and cm4040_cs.

Signed-off-by: Akinbou Mita <akinobu.mita at gmail.com>
Signed-off-by: Harald Welte <laforge at gnumonks.org>
Signed-off-by: Dominik Brodowski <linux at dominikbrodowski.net>
---
 drivers/char/pcmcia/cm4000_cs.c |    6 +++---
 drivers/char/pcmcia/cm4040_cs.c |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 50d20aa..d9fdef2 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1973,14 +1973,14 @@ static int __init cmm_init(void)
 	printk(KERN_INFO "%s\n", version);
 
 	cmm_class = class_create(THIS_MODULE, "cardman_4000");
-	if (!cmm_class)
-		return -1;
+	if (IS_ERR(cmm_class))
+		return PTR_ERR(cmm_class);
 
 	major = register_chrdev(0, DEVICE_NAME, &cm4000_fops);
 	if (major < 0) {
 		printk(KERN_WARNING MODULE_NAME
 			": could not get major number\n");
-		return -1;
+		return major;
 	}
 
 	rc = pcmcia_register_driver(&cm4000_driver);
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 55cf4be..7368332 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -721,14 +721,14 @@ static int __init cm4040_init(void)
 
 	printk(KERN_INFO "%s\n", version);
 	cmx_class = class_create(THIS_MODULE, "cardman_4040");
-	if (!cmx_class)
-		return -1;
+	if (IS_ERR(cmx_class))
+		return PTR_ERR(cmx_class);
 
 	major = register_chrdev(0, DEVICE_NAME, &reader_fops);
 	if (major < 0) {
 		printk(KERN_WARNING MODULE_NAME
 			": could not get major number\n");
-		return -1;
+		return major;
 	}
 
 	rc = pcmcia_register_driver(&reader_driver);
-- 
1.4.4