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authorSteve French <smfrench@gmail.com>2014-09-14 23:27:09 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-10-05 14:52:17 -0700
commitd51afb094e833d28085f2a6c35b179260d981bb2 (patch)
treed8c2a9385df8621eb0b55e1f7a4ef6f7296fad14 /fs/cifs
parent8e3006d02b46a722729a3bbd6a774eae99c6c8b8 (diff)
SMB3: Fix oops when creating symlinks on smb3
commit da80659d4aa758dc6935b10ec64513f0b67bc969 upstream. We were not checking for symlink support properly for SMB2/SMB3 mounts so could oops when mounted with mfsymlinks when try to create symlink when mfsymlinks on smb2/smb3 mounts Signed-off-by: Steve French <smfrench@gmail.com> CC: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/link.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 68559fd557fb..a5c2812ead68 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -213,8 +213,12 @@ create_mf_symlink(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto out;
- rc = tcon->ses->server->ops->create_mf_symlink(xid, tcon, cifs_sb,
- fromName, buf, &bytes_written);
+ if (tcon->ses->server->ops->create_mf_symlink)
+ rc = tcon->ses->server->ops->create_mf_symlink(xid, tcon,
+ cifs_sb, fromName, buf, &bytes_written);
+ else
+ rc = -EOPNOTSUPP;
+
if (rc)
goto out;