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NFS: Return meaningful status from decode_secinfo()

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When compiling, I was getting this warning:
fs/nfs/nfs4xdr.c: In function ‘decode_secinfo’:
fs/nfs/nfs4xdr.c:4839:6: warning: variable ‘status’ set but not used
[-Wunused-but-set-variable]

We were unconditionally returning 0 as long as there wasn't an error
coming out of xdr_inline_decode().  We probably want to check the error
status coming out of decode_op_hdr() and decode_secinfo_gss(), rather
than assuming that everything is OK all the time.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker 2011-04-27 15:28:44 -04:00 committed by Trond Myklebust
parent 28331a46d8
commit 613e901e1e
1 changed files with 7 additions and 4 deletions
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11
fs/nfs/nfs4xdr.c
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@ -4836,6 +4836,8 @@ static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
int i, num_flavors; int i, num_flavors;
status = decode_op_hdr(xdr, OP_SECINFO); status = decode_op_hdr(xdr, OP_SECINFO);
if (status)
goto out;
p = xdr_inline_decode(xdr, 4); p = xdr_inline_decode(xdr, 4);
if (unlikely(!p)) if (unlikely(!p))
goto out_overflow; goto out_overflow;
@ -4854,14 +4856,15 @@ static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
sec_flavor->flavor = be32_to_cpup(p); sec_flavor->flavor = be32_to_cpup(p);
if (sec_flavor->flavor == RPC_AUTH_GSS) { if (sec_flavor->flavor == RPC_AUTH_GSS) {
if (decode_secinfo_gss(xdr, sec_flavor)) status = decode_secinfo_gss(xdr, sec_flavor);
break; if (status)
goto out;
} }
res->flavors->num_flavors++; res->flavors->num_flavors++;
} }
return 0; out:
return status;
out_overflow: out_overflow:
print_overflow_msg(__func__, xdr); print_overflow_msg(__func__, xdr);
return -EIO; return -EIO;