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[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@gmail.com>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Akinobu Mita 2006-10-17 15:25:59 +09:00 committed by Dominik Brodowski
parent 0517793fa8
commit 5eb5fc97d8
2 changed files with 6 additions and 6 deletions
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6
drivers/char/pcmcia/cm4000_cs.c
View File

@ -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);

6
drivers/char/pcmcia/cm4040_cs.c
View File

@ -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);