Static checkers complain about the missing call to misc_deregister() if
bind_virq_for_mce() fails.
Also I reversed the tests so that we do error handling instead of
success handling. That way we just have a series of function calls
instead of the more complicated nested if statements in the original
code. Let's preserve the error codes as well.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/xen/mcelog.c b/drivers/xen/mcelog.c
index 6ab6a79..a493c7315 100644
--- a/drivers/xen/mcelog.c
+++ b/drivers/xen/mcelog.c
@@ -393,14 +393,25 @@ static int bind_virq_for_mce(void)
static int __init xen_late_init_mcelog(void)
{
+ int ret;
+
/* Only DOM0 is responsible for MCE logging */
- if (xen_initial_domain()) {
- /* register character device /dev/mcelog for xen mcelog */
- if (misc_register(&xen_mce_chrdev_device))
- return -ENODEV;
- return bind_virq_for_mce();
- }
+ if (!xen_initial_domain())
+ return -ENODEV;
+
+ /* register character device /dev/mcelog for xen mcelog */
+ ret = misc_register(&xen_mce_chrdev_device);
+ if (ret)
+ return ret;
+
+ ret = bind_virq_for_mce();
+ if (ret)
+ goto deregister;
- return -ENODEV;
+ return 0;
+
+deregister:
+ misc_deregister(&xen_mce_chrdev_device);
+ return ret;
}
device_initcall(xen_late_init_mcelog);
--
To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
