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authorJoel Becker <jlbec@evilplan.org>2011-03-28 09:44:26 -0700
committerJoel Becker <jlbec@evilplan.org>2011-03-28 09:44:26 -0700
commit99bdc3880c611c7f2061fbd5372ef81b40217e26 (patch)
treeef68a53e28e9ee53ce9db3642bab5fa5b3d44866 /fs/xfs/linux-2.6/xfs_ioctl.c
parented59992e8d91b70053c53d846a76f7e1ac000454 (diff)
parentb4e1b7e88b2c87c358c2a88bec0c76d25accc604 (diff)
downloadlwn-99bdc3880c611c7f2061fbd5372ef81b40217e26.tar.gz
lwn-99bdc3880c611c7f2061fbd5372ef81b40217e26.zip
Merge branch 'mlog_replace_for_39' of git://repo.or.cz/taoma-kernel into ocfs2-merge-window-fix
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index f5e2a19e0f8e..0ca0e3c024d7 100644
--- 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;
}