i2c-dev: Return correct error code on class_create() failure

In Linus' tree:
http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commit;h=e74783ec3cb981211689bd2cfd3248f8dc48ec01

We need to convert the error pointer from class_create(), else we'll return the
successful return code from register_chrdev() on failure.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index d34c14c81c291e9beabf7100530307b8a42e8914..436c7e133e70c7c985215df1c48d9faa53571efb 100644 (file)
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -581,8 +581,10 @@ static int __init i2c_dev_init(void)
                goto out;
 
        i2c_dev_class = class_create(THIS_MODULE, "i2c-dev");
-       if (IS_ERR(i2c_dev_class))
+       if (IS_ERR(i2c_dev_class)) {
+               res = PTR_ERR(i2c_dev_class);
                goto out_unreg_chrdev;
+       }
 
        res = i2c_add_driver(&i2cdev_driver);
        if (res)