xen64: deal with extra words Xen pushes onto exception frames

[linux-2.6-omap-h63xx.git] / fs / nfs / mount_clnt.c

diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 49c7cd0502cc39b9411460ac7b27b6ac367781c2..779d2eb649c57935f8929f02271e48ca03759151 100644 (file)
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -130,10 +130,11 @@ static int xdr_decode_fhstatus3(struct rpc_rqst *req, __be32 *p,
                                struct mnt_fhstatus *res)
 {
        struct nfs_fh *fh = res->fh;
+       unsigned size;
 
        if ((res->status = ntohl(*p++)) == 0) {
-               int size = ntohl(*p++);
-               if (size <= NFS3_FHSIZE) {
+               size = ntohl(*p++);
+               if (size <= NFS3_FHSIZE && size != 0) {
                        fh->size = size;
                        memcpy(fh->data, p, size);
                } else