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Staging: sep: untangle the register_fs code 

While goto can be useful for cleaner cleaning up in C (as Linux sometimes
does and I think Linus borrowed stylistically from Amiga) you can overdo it.
Here is a fine fine example of when it's overkill

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-08-14 15:49:22 +01:00 committed by Greg Kroah-Hartman
parent cfd498be6e
commit a4e80a1bcc
1 changed files with 8 additions and 17 deletions
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25
drivers/staging/sep/sep_driver.c
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@ -2169,8 +2169,8 @@ static int sep_get_time_handler(struct sep_device *sep, unsigned long arg)
struct sep_driver_get_time_t command_args;
mutex_lock(&sep_mutex);
command_arg.time_value = sep_set_time(sep);
command_args.time_physical_address = sep_time_address(sep);
command_args.time_value = sep_set_time(sep);
command_args.time_physical_address = (unsigned long)sep_time_address(sep);
mutex_unlock(&sep_mutex);
if (copy_to_user((void __user *)arg,
&command_args, sizeof(struct sep_driver_get_time_t)))
@ -2646,31 +2646,22 @@ static int sep_register_driver_to_fs(void)
{
int ret_val = alloc_chrdev_region(&sep_devno, 0, 1, "sep_sec_driver");
if (ret_val) {
edbg("sep_driver:major number allocation failed, retval is %d\n", ret_val);
goto end_function;
edbg("sep: major number allocation failed, retval is %d\n",
ret_val);
return ret_val;
}
/* init cdev */
cdev_init(&sep_cdev, &sep_file_operations);
sep_cdev.owner = THIS_MODULE;
/* register the driver with the kernel */
ret_val = cdev_add(&sep_cdev, sep_devno, 1);
if (ret_val) {
edbg("sep_driver:cdev_add failed, retval is %d\n", ret_val);
goto end_function_unregister_devnum;
/* unregister dev numbers */
unregister_chrdev_region(sep_devno, 1);
}
goto end_function;
end_function_unregister_devnum:
/* unregister dev numbers */
unregister_chrdev_region(sep_devno, 1);
end_function:
return ret_val;
return ret_val;
}