linux-kernel - [PATCH] kbuild: deb-pkg: Remove blank first line from maint scripts

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Message-Id: <20241004075245.169046-1-dev@aaront.org>
Date: Fri,  4 Oct 2024 07:52:45 +0000
From: Aaron Thompson <dev@...ont.org>
To: Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Aaron Thompson <dev@...ont.org>
Subject: [PATCH] kbuild: deb-pkg: Remove blank first line from maint scripts

From: Aaron Thompson <dev@...ont.org>

The blank line causes execve() to fail:

  # strace ./postinst
  execve("./postinst", ...) = -1 ENOEXEC (Exec format error)
  strace: exec: Exec format error
  +++ exited with 1 +++

However running the scripts via shell does work (at least with bash)
because the shell attempts to execute the file as a shell script when
execve() fails.

Fixes: b611daae5efc ("kbuild: deb-pkg: split image and debug objects staging out into functions")
Signed-off-by: Aaron Thompson <dev@...ont.org>
---
 scripts/package/builddeb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index c1757db6aa8a..404587fc71fe 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -74,7 +74,6 @@ install_linux_image () {
 
 		mkdir -p "${pdir}/DEBIAN"
 		cat <<-EOF > "${pdir}/DEBIAN/${script}"
-
 		#!/bin/sh
 
 		set -e

base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
-- 
2.39.5