From dacdfc20957d92eff7a3c9fd72baa849b45485e3 Mon Sep 17 00:00:00 2001
From: "Brian C. Lane" <bcl@redhat.com>
Date: Thu, 10 Jun 2021 15:39:04 -0700
Subject: [PATCH 06/13] libparted: Fix fd check in _flush_cache

In theory open() could return 0 so the correct error value is -1.
---
 libparted/arch/linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libparted/arch/linux.c b/libparted/arch/linux.c
index 94ea176..9dc90b5 100644
--- a/libparted/arch/linux.c
+++ b/libparted/arch/linux.c
@@ -1678,7 +1678,7 @@ _flush_cache (PedDevice* dev)
                         break;
                 if (!_partition_is_mounted_by_path (name)) {
                         fd = open (name, WR_MODE, 0);
-                        if (fd > 0) {
+                        if (fd > -1) {
                                 ioctl (fd, BLKFLSBUF);
 retry:
                                 if (fsync (fd) < 0 || close (fd) < 0)
-- 
2.31.1