Merge branches 'stable/ia64', 'stable/blkfront-cleanup' and 'stable/cleanup' of git...

[~andy/linux] / fs / xfs / linux-2.6 / xfs_ioctl.c

diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index f5e2a19e0f8eb25114fa8de3478b289d4972b8a9..0ca0e3c024d7bac3993707dd7309b3fda9664a07 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -695,14 +695,19 @@ xfs_ioc_fsgeometry_v1(
        xfs_mount_t             *mp,
        void                    __user *arg)
 {
-       xfs_fsop_geom_v1_t      fsgeo;
+       xfs_fsop_geom_t         fsgeo;
        int                     error;
 
-       error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3);
+       error = xfs_fs_geometry(mp, &fsgeo, 3);
        if (error)
                return -error;
 
-       if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
+       /*
+        * Caller should have passed an argument of type
+        * xfs_fsop_geom_v1_t.  This is a proper subset of the
+        * xfs_fsop_geom_t that xfs_fs_geometry() fills in.
+        */
+       if (copy_to_user(arg, &fsgeo, sizeof(xfs_fsop_geom_v1_t)))
                return -XFS_ERROR(EFAULT);
        return 0;
 }