35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Steve McIntyre <steve@einval.com>
|
|
Date: Tue, 6 Dec 2022 01:45:11 +0000
|
|
Subject: [PATCH] kern/file: Fix error handling in grub_file_open()
|
|
|
|
grub_file_open() calls grub_file_get_device_name(), but doesn't check
|
|
the return. Instead, it checks if grub_errno is set.
|
|
|
|
However, nothing initialises grub_errno here when grub_file_open()
|
|
starts. This means that trying to open one file that doesn't exist and
|
|
then trying to open another file that does will (incorrectly) also
|
|
fail to open that second file.
|
|
|
|
Let's fix that.
|
|
|
|
Signed-off-by: Steve McIntyre <steve@einval.com>
|
|
---
|
|
grub-core/kern/file.c | 3 +++
|
|
1 file changed, 3 insertions(+)
|
|
|
|
diff --git a/grub-core/kern/file.c b/grub-core/kern/file.c
|
|
index 58454458c4..5b58f45cfd 100644
|
|
--- a/grub-core/kern/file.c
|
|
+++ b/grub-core/kern/file.c
|
|
@@ -66,6 +66,9 @@ grub_file_open (const char *name, enum grub_file_type type)
|
|
const char *file_name;
|
|
grub_file_filter_id_t filter;
|
|
|
|
+ /* Reset grub_errno before we start */
|
|
+ grub_errno = GRUB_ERR_NONE;
|
|
+
|
|
device_name = grub_file_get_device_name (name);
|
|
if (grub_errno)
|
|
goto fail;
|