Fix coverity warning

Coverity reports a warning for referencing the beginning of the
SMB2/SMB3 frame using the ProtocolId field as an array. Although
it works the same either way, this patch should quiet the warning
and might be a little clearer.

Reported by Coverity (CID 741269)

Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@poochiereds.net>

diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 689f035..22dfdf1 100644 (file)
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -322,7 +322,7 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr)
 
        /* return pointer to beginning of data area, ie offset from SMB start */
        if ((*off != 0) && (*len != 0))
-               return hdr->ProtocolId + *off;
+               return (char *)(&hdr->ProtocolId[0]) + *off;
        else
                return NULL;
 }