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staging: ft1000: Fix proc initialization handling.

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Cleaning proc entries when error occures was not handled correctly.
So fix and also add proper cleaning.

Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Marek Belisko 2010-12-09 16:13:47 +01:00 committed by Greg Kroah-Hartman
parent 115884118a
commit 5fd866fb64
2 changed files with 27 additions and 15 deletions
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40
drivers/staging/ft1000/ft1000-usb/ft1000_proc.c
View file

@ -193,32 +193,44 @@ static struct notifier_block ft1000_netdev_notifier = {
};
void
ft1000InitProc (struct net_device *dev)
int ft1000InitProc(struct net_device *dev)
{
struct ft1000_info *info;
struct proc_dir_entry *ft1000_proc_file;
int ret = 0;
info = netdev_priv(dev);
info->ft1000_proc_dir = proc_mkdir (FT1000_PROC_DIR, FTNET_PROC);
if (info->ft1000_proc_dir == NULL)
{
remove_proc_entry (FT1000_PROC_DIR, FTNET_PROC);
}
if (info->ft1000_proc_dir == NULL) {
printk(KERN_WARNING "Unable to create %s dir.\n",
FT1000_PROC_DIR);
ret = -EINVAL;
goto fail;
}
ft1000_proc_file =
create_proc_read_entry (dev->name, 0644, info->ft1000_proc_dir,
ft1000ReadProc, dev);
if (ft1000_proc_file == NULL)
{
remove_proc_entry (info->netdevname, info->ft1000_proc_dir);
}
if (ft1000_proc_file == NULL) {
printk(KERN_WARNING "Unable to create /proc entry.\n");
ret = -EINVAL;
goto fail_entry;
}
snprintf (info->netdevname, IFNAMSIZ, "%s", dev->name);
register_netdevice_notifier (&ft1000_netdev_notifier);
return;
ret = register_netdevice_notifier(&ft1000_netdev_notifier);
if (ret)
goto fail_notif;
return 0;
fail_notif:
remove_proc_entry(info->netdevname, info->ft1000_proc_dir);
fail_entry:
remove_proc_entry(FT1000_PROC_DIR, FTNET_PROC);
fail:
return ret;
}
void

2
drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
View file

@ -594,7 +594,7 @@ struct usb_interface;
int reg_ft1000_netdev(struct ft1000_device *ft1000dev, struct usb_interface *intf);
int ft1000_poll(void* dev_id);
void ft1000InitProc(struct net_device *dev);
int ft1000InitProc(struct net_device *dev);
void ft1000CleanupProc(struct ft1000_info *info);