From 32692de010a6c74e8922403c50c0ada0170a2c7b Mon Sep 17 00:00:00 2001
From: "Guilherme G. Piccoli" <gpiccoli@igalia.com>
Date: Mon, 9 Jan 2023 20:04:54 -0300
Subject: [PATCH] initramfs: Guard against non-existing block device during
 kdump

Being extra cautious to prevent hangs.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
---
 initramfs/kdump-collect.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/initramfs/kdump-collect.sh b/initramfs/kdump-collect.sh
index dfaf0a6..8e45fdc 100644
--- a/initramfs/kdump-collect.sh
+++ b/initramfs/kdump-collect.sh
@@ -35,6 +35,11 @@
     BASE_FOLDER="$(cat /usr/lib/kdump/kdump.dir)"
     KDUMP_FOLDER="/kdump_path/${BASE_FOLDER}/crash/${KDUMP_TIMESTAMP}"
 
+    #  Check if the device node exists - or else, just bails-out.
+    if [ ! -e "${MOUNT_POINT}" ]; then
+        reboot -f
+    fi
+
     mkdir -p "/kdump_path"
     if ! mount "${MOUNT_POINT}" /kdump_path; then
         reboot -f