9p: Pass the correct end of buffer to p9dirent_read

A patch was accepted recently for sending correct buffer size to p9stat_read.
We need a similar patch in v9fs_dir_readdir_dotl to send correct end of buffer
to p9dirent_read.

Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 899f168fd19c..170f5bb8ebe0 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -242,7 +242,8 @@ static int v9fs_dir_readdir_dotl(struct file *filp, void *dirent,
                 while (rdir->head < rdir->tail) {
 
                         err = p9dirent_read(rdir->buf + rdir->head,
-                                                buflen - rdir->head, &curdirent,
+                                                rdir->tail - rdir->head,
+                                                &curdirent,
                                                 fid->clnt->proto_version);
                         if (err < 0) {
                                 P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);