gadgetfs: list_for_each_safe() misuse

really weirdly spelled "while the list is non-empty, pick its
first element, remove it from the list and free it" kind of loop...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index c95eea4..f701afb 100644 (file)
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1569,20 +1569,18 @@ delegate:
 
 static void destroy_ep_files (struct dev_data *dev)
 {
-       struct list_head        *entry, *tmp;
-
        DBG (dev, "%s %d\n", __func__, dev->state);
 
        /* dev->state must prevent interference */
 restart:
        spin_lock_irq (&dev->lock);
-       list_for_each_safe (entry, tmp, &dev->epfiles) {
+       while (!list_empty(&dev->epfiles)) {
                struct ep_data  *ep;
                struct inode    *parent;
                struct dentry   *dentry;
 
                /* break link to FS */
-               ep = list_entry (entry, struct ep_data, epfiles);
+               ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
                list_del_init (&ep->epfiles);
                dentry = ep->dentry;
                ep->dentry = NULL;
@@ -1605,8 +1603,7 @@ restart:
                dput (dentry);
                mutex_unlock (&parent->i_mutex);
 
-               /* fds may still be open */
-               goto restart;
+               spin_lock_irq (&dev->lock);
        }
        spin_unlock_irq (&dev->lock);
 }