Revert "nfsd: correctly handle return value from nfsd_map_name_to_*"

This reverts commit 63d059e7.

On Wed, Sep 03, 2014 at 11:28:43AM +1000, NeilBrown wrote:
>
> 2.6.32.30 contains:
>
> commit 63d059e7
> Author: NeilBrown <neilb@suse.de>
> Date:   Wed Feb 16 13:08:35 2011 +1100
>
>     nfsd: correctly handle return value from nfsd_map_name_to_*
>
>     commit 47c85291 upstream.
>
>     These functions return an nfs status, not a host_err.  So don't
>     try to convert  before returning.
>
>     This is a regression introduced by
>     3c726023; I fixed up two of the callers,
>     but missed these two.
>
>     Reported-by: Herbert Poetzl <herbert@13thfloor.at>
>     Signed-off-by: NeilBrown <neilb@suse.de>
>     Signed-off-by: J. Bruce Fields <bfields@redhat.com>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
>
>
> But it does *not* contain a backport of
> 3c726023.
>
> So rather an fixing a regression, it introduces one.
>
> This patch should be reverted.
>
> See also https://bugzilla.novell.com/show_bug.cgi?id=893787
>
> NeilBrown
Signed-off-by: Willy Tarreau <w@1wt.eu>

fs/nfsd/nfs4xdr.c

@@ -323,8 +323,8 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 		READ_BUF(dummy32);
 		len += (XDR_QUADLEN(dummy32) << 2);
 		READMEM(buf, dummy32);
-		if ((status = nfsd_map_name_to_uid(argp->rqstp, buf, dummy32, &iattr->ia_uid)))
-			return status;
+		if ((host_err = nfsd_map_name_to_uid(argp->rqstp, buf, dummy32, &iattr->ia_uid)))
+			goto out_nfserr;
 		iattr->ia_valid |= ATTR_UID;
 	}
 	if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) {
@@ -334,8 +334,8 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 		READ_BUF(dummy32);
 		len += (XDR_QUADLEN(dummy32) << 2);
 		READMEM(buf, dummy32);
-		if ((status = nfsd_map_name_to_gid(argp->rqstp, buf, dummy32, &iattr->ia_gid)))
-			return status;
+		if ((host_err = nfsd_map_name_to_gid(argp->rqstp, buf, dummy32, &iattr->ia_gid)))
+			goto out_nfserr;
 		iattr->ia_valid |= ATTR_GID;
 	}
 	if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {