From b4cacbf5b15db06132b5f401d39b4c8d4e79158e Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Sat, 8 Feb 2014 17:26:06 +0100
Subject: [PATCH] linux: check the configuration file exists

... and abort early, before we even use it.

Reported-by: Peter Korsgaard <jacmet@uclibc.org>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 linux/linux.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/linux/linux.mk b/linux/linux.mk
index cf728aad05..ec7dfc39ec 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -166,6 +166,10 @@ else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
 KERNEL_SOURCE_CONFIG = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE))
 endif
 
+ifeq ($(wildcard $(KERNEL_SOURCE_CONFIG)),)
+$(error Configuration file '$(KERNEL_SOURCE_CONFIG)' not found.)
+endif
+
 ifeq ($(call KCONFIG_GET_OPT,CONFIG_KERNEL_LZO,$(KERNEL_SOURCE_CONFIG)),y)
 LINUX_DEPENDENCIES += host-lzop
 endif
-- 
2.30.2