On Tue, 24 Jan 2012 11:39:22 +0300
Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> We should just return directly here, the goto causes a NULL dereference.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> index 986709a..026d646 100644
> --- a/fs/cifs/connect.c
> +++ b/fs/cifs/connect.c
> @@ -3857,10 +3857,8 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
> struct smb_vol *vol_info;
>
> vol_info = kzalloc(sizeof(*vol_info), GFP_KERNEL);
> - if (vol_info == NULL) {
> - tcon = ERR_PTR(-ENOMEM);
> - goto out;
> - }
> + if (vol_info == NULL)
> + return ERR_PTR(-ENOMEM);
>
> vol_info->local_nls = cifs_sb->local_nls;
> vol_info->linux_uid = fsuid;
Huh? How so? Here's what "out:" looks like in my tree:
---------------[snip]----------------
out:
kfree(vol_info);
return tcon;
---------------[snip]----------------
vol_info is NULL, so the kfree is safe. This patch shouldn't break
anything, but I don't think it's strictly necessary.
--
Jeff Layton <jlayton@xxxxxxxxx>
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