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authorAkinobu Mita <akinobu.mita@gmail.com>2006-10-17 15:25:59 +0900
committerDominik Brodowski <linux@dominikbrodowski.net>2006-12-04 20:09:13 -0500
commit5eb5fc97d83ee1f8fcf3490bb81ad14a99fc544c (patch)
treef09779d3be8c51f57de1e2dbf6b2446d459e6085 /drivers/char/pcmcia/cm4040_cs.c
parent0517793fa8f98e6f30406b1811ea0312bca3a414 (diff)
downloadop-kernel-dev-5eb5fc97d83ee1f8fcf3490bb81ad14a99fc544c.zip
op-kernel-dev-5eb5fc97d83ee1f8fcf3490bb81ad14a99fc544c.tar.gz
[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>
Diffstat (limited to 'drivers/char/pcmcia/cm4040_cs.c')
-rw-r--r--drivers/char/pcmcia/cm4040_cs.c6
1 files changed, 3 insertions, 3 deletions
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);
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