From 58135fbd8b68228678eb0ce38566aaf7ab1aad94 Mon Sep 17 00:00:00 2001
From: Eric van Gyzen <vangyzen@FreeBSD.org>
Date: Thu, 24 Feb 2022 17:00:52 -0600
Subject: [PATCH] gzip: fix error handling in unxz

The result of fstat() was not checked.  Furthermore, there was a
redundant check of st.st_size.  Fix both.

Reported by:    Coverity
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
---
 usr.bin/gzip/unxz.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/usr.bin/gzip/unxz.c b/usr.bin/gzip/unxz.c
index b92bec8f39b0..246600fd657c 100644
--- a/usr.bin/gzip/unxz.c
+++ b/usr.bin/gzip/unxz.c
@@ -260,8 +260,7 @@ parse_indexes(xz_file_info *xfi, int src_fd)
 {
 	struct stat st;
 
-	fstat(src_fd, &st);
-	if (st.st_size <= 0) {
+	if (fstat(src_fd, &st) != 0) {
 		return true;
 	}