From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 8 Dec 2020 18:11:11 +0000 (-0500)
Subject: NFSv4.2: Ensure we always reset the result->count in decode_read_plus()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1ee6310119a5b4460324111a8c4536054356b963;p=linux.git

NFSv4.2: Ensure we always reset the result->count in decode_read_plus()

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---

diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index c0b8fcd266c98..1c21db640f4d9 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -1087,6 +1087,7 @@ static int decode_read_plus(struct xdr_stream *xdr, struct nfs_pgio_res *res)
 	if (unlikely(!p))
 		return -EIO;
 
+	res->count = 0;
 	eof = be32_to_cpup(p++);
 	segments = be32_to_cpup(p++);
 	if (segments == 0)