Re: [PATCH 4/4] [SMB3] Fix coverity warning

From: Sachin Prabhu
Date: Mon Mar 30 2015 - 05:52:00 EST


On Fri, 2015-03-27 at 00:28 -0500, Steve French wrote:
> 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@xxxxxxxxx>

Acked-by: Sachin Prabhu <sprabhu@xxxxxxxxxx>

> ---
> fs/cifs/smb2misc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
> index 689f035..22dfdf1 100644
> --- 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;
> }


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