cifs: fix potential mismatch of UNC paths
authorPaulo Alcantara (SUSE) <pc@cjr.nz>
Thu, 20 Feb 2020 22:49:35 +0000 (19:49 -0300)
committerSteve French <stfrench@microsoft.com>
Mon, 24 Feb 2020 20:20:38 +0000 (14:20 -0600)
commit154255233830e1e4dd0d99ac929a5dce588c0b81
tree719128f79d04751293c8786f0585c4f9b8e2adf7
parentfc513fac56e1b626ae48a74d7551d9c35c50129e
cifs: fix potential mismatch of UNC paths

Ensure that full_path is an UNC path that contains '\\' as delimiter,
which is required by cifs_build_devname().

The build_path_from_dentry_optional_prefix() function may return a
path with '/' as delimiter when using SMB1 UNIX extensions, for
example.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
fs/cifs/cifs_dfs_ref.c