[Ocfs2-devel] [PATCH V2] ocfs2: Add missing errno in ocfs2_ioctl_move_extents()

[Younger Liu]

If the file is not regular or writeable, it should return errno(EPERM).

This patch is based on commit 85a258b70d4891a443583530f48ab734a31e2d8d.

Signed-off-by: Younger Liu <younger.liu at huawei.com>
Signed-off-by: Jie Liu <jeff.liu at oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 fs/ocfs2/move_extents.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 3d3f3c8..9385fa8 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -1067,8 +1067,10 @@ int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp)
 	if (status)
 		return status;
 
-	if ((!S_ISREG(inode->i_mode)) || !(filp->f_mode & FMODE_WRITE))
+	if ((!S_ISREG(inode->i_mode)) || !(filp->f_mode & FMODE_WRITE)) {
+		status = -EPERM;
 		goto out_drop;
+	}
 
 	if (inode->i_flags & (S_IMMUTABLE|S_APPEND)) {
 		status = -EPERM;
@@ -1090,8 +1092,10 @@ int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp)
 		goto out_free;
 	}
 
-	if (range.me_start > i_size_read(inode))
+	if (range.me_start > i_size_read(inode)) {
+		status = -EINVAL;
 		goto out_free;
+	}
 
 	if (range.me_start + range.me_len > i_size_read(inode))
 			range.me_len = i_size_read(inode) - range.me_start;
-- 
1.7.9.7