From d13168cebfa0aeb7675157de64466570fbfd8155 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Tue, 15 Nov 2016 14:44:46 +0100
Subject: [PATCH] btrfs-progs: send-stream: use proper type for read return
 value

Signed-off-by: David Sterba <dsterba@suse.com>
---
 send-stream.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/send-stream.c b/send-stream.c
index 31e9a7b5..376c8cc9 100644
--- a/send-stream.c
+++ b/send-stream.c
@@ -43,18 +43,20 @@ static int read_buf(struct btrfs_send_stream *sctx, char *buf, size_t len)
 	size_t pos = 0;
 
 	while (pos < len) {
-		ret = read(sctx->fd, buf + pos, len - pos);
-		if (ret < 0) {
+		ssize_t rbytes;
+
+		rbytes = read(sctx->fd, buf + pos, len - pos);
+		if (rbytes < 0) {
 			ret = -errno;
 			error("read from stream failed: %s",
 					strerror(-ret));
 			goto out;
 		}
-		if (ret == 0) {
+		if (rbytes == 0) {
 			ret = 1;
 			goto out;
 		}
-		pos += ret;
+		pos += rbytes;
 	}
 
 	ret = 0;