From 5eb5fc97d83ee1f8fcf3490bb81ad14a99fc544c Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 17 Oct 2006 15:25:59 +0900 Subject: [PATCH] [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 Signed-off-by: Harald Welte Signed-off-by: Dominik Brodowski --- 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 50d20aafeb1..d9fdef22791 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 55cf4be4297..7368332c698 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); -- 2.20.1