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authorSteve French <smfrench@gmail.com>2014-09-14 23:27:09 -0500
committerSteve French <smfrench@gmail.com>2014-09-15 03:04:50 -0500
commitda80659d4aa758dc6935b10ec64513f0b67bc969 (patch)
tree0ed0b999b3330a489c6c2b6b0c118c3b305d0c5f /fs/cifs/link.c
parent2ae83bf93882d1ec0cd775c489bd1bee611f792e (diff)
downloadlinux-da80659d4aa758dc6935b10ec64513f0b67bc969.tar.bz2
[SMB3] Fix oops when creating symlinks on smb3
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: <stable@vger.kernel.org> # 3.14+ CC: Sachin Prabhu <sprabhu@redhat.com>
Diffstat (limited to 'fs/cifs/link.c')
-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;