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Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux

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Pull nfsd bugfix from Bruce Fields:
 "Another regression from the xdr encoding rewrite"

* 'for-3.16' of git://linux-nfs.org/~bfields/linux:
  NFSD: Fix crash encoding lock reply on 32-bit
This commit is contained in:
Linus Torvalds 2014-07-23 17:55:11 -07:00
commit 82e13c71bc
1 changed files with 3 additions and 1 deletions
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4
fs/nfsd/nfs4xdr.c
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@ -2879,6 +2879,7 @@ again:
* return the conflicting open:
*/
if (conf->len) {
kfree(conf->data);
conf->len = 0;
conf->data = NULL;
goto again;
@ -2891,6 +2892,7 @@ again:
if (conf->len) {
p = xdr_encode_opaque_fixed(p, &ld->ld_clientid, 8);
p = xdr_encode_opaque(p, conf->data, conf->len);
kfree(conf->data);
} else { /* non - nfsv4 lock in conflict, no clientid nor owner */
p = xdr_encode_hyper(p, (u64)0); /* clientid */
*p++ = cpu_to_be32(0); /* length of owner name */
@ -2907,7 +2909,7 @@ nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_lo
nfserr = nfsd4_encode_stateid(xdr, &lock->lk_resp_stateid);
else if (nfserr == nfserr_denied)
nfserr = nfsd4_encode_lock_denied(xdr, &lock->lk_denied);
kfree(lock->lk_denied.ld_owner.data);
return nfserr;
}