From 8b1dbe49727bad9bd009306ab8921d06fd91b38a Mon Sep 17 00:00:00 2001
From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Date: Mon, 2 Oct 2023 13:01:47 +0200
Subject: [PATCH] libfdisk: reset errno before calling read()
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The else branch will be executed on short reads.
For those errno is not reset so a random left-over errno value may be
checked.

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---
 libfdisk/src/utils.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libfdisk/src/utils.c b/libfdisk/src/utils.c
index 38ad233933..6b6167d478 100644
--- a/libfdisk/src/utils.c
+++ b/libfdisk/src/utils.c
@@ -29,6 +29,7 @@ static int read_from_device(struct fdisk_context *cxt,
 		return -errno;
 	}
 
+	errno = 0;
 	r = read(cxt->dev_fd, buf, size);
 	if (r < 0 || (size_t)r != size) {
 		if (!errno)
-- 
2.47.2