nfsd: Fix the documentation for svcxdr_tmpalloc()

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4xdr.c

@@ -212,10 +212,10 @@ static int zero_clientid(clientid_t *clid)
 /**
  * svcxdr_tmpalloc - allocate memory to be freed after compound processing
  * @argp: NFSv4 compound argument structure
- * @p: pointer to be freed (with kfree())
+ * @len: length of buffer to allocate
  *
- * Marks @p to be freed when processing the compound operation
- * described in @argp finishes.
+ * Allocates a buffer of size @len to be freed when processing the compound
+ * operation described in @argp finishes.
  */
 static void *
 svcxdr_tmpalloc(struct nfsd4_compoundargs *argp, u32 len)