locks: let the caller free file_lock on ->setlease failure

[cascardo/linux.git] / fs / locks.c

diff --git a/fs/locks.c b/fs/locks.c
index 5b526a9..a2ab790 100644 (file)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1428,8 +1428,9 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
                goto out;
 
        if (my_before != NULL) {
-               *flp = *my_before;
                error = lease->fl_lmops->fl_change(my_before, arg);
+               if (!error)
+                       *flp = *my_before;
                goto out;
        }
 
@@ -1444,8 +1445,6 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
        return 0;
 
 out:
-       if (arg != F_UNLCK)
-               locks_free_lock(lease);
        return error;
 }
 EXPORT_SYMBOL(generic_setlease);
@@ -1524,8 +1523,11 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
        }
        lock_flocks();
        error = __vfs_setlease(filp, arg, &fl);
-       if (error)
-               goto out_unlock;
+       if (error) {
+               unlock_flocks();
+               locks_free_lock(fl);
+               goto out_free_fasync;
+       }
 
        /*
         * fasync_insert_entry() returns the old entry if any.
@@ -1541,12 +1543,12 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
                fl->fl_type = F_UNLCK | F_INPROGRESS;
                fl->fl_break_time = jiffies - 10;
                time_out_leases(inode);
-               goto out_unlock;
+       } else {
+               error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
        }
-
-       error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
-out_unlock:
        unlock_flocks();
+
+out_free_fasync:
        if (new)
                fasync_free(new);
        return error;