From 55eb0f42f465640fe687d15cdf7677cfb642909c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 26 Aug 2020 14:21:43 -0700 Subject: kconfig: streamline_config.pl: check defined(ENV variable) before using it commit a73fbfce2cc28883f659414d598e6e60ca2214b4 upstream. A user reported: 'Use of uninitialized value $ENV{"LMC_KEEP"} in split at ./scripts/kconfig/streamline_config.pl line 596.' so first check that $ENV{LMC_KEEP} is defined before trying to use it. Fixes: c027b02d89fd ("streamline_config.pl: add LMC_KEEP to preserve some kconfigs") Signed-off-by: Randy Dunlap Acked-by: Steven Rostedt (VMware) Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman --- scripts/kconfig/streamline_config.pl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'scripts/kconfig') diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl index 19857d18d814..1c78ba49ca99 100755 --- a/scripts/kconfig/streamline_config.pl +++ b/scripts/kconfig/streamline_config.pl @@ -593,7 +593,10 @@ while ($repeat) { } my %setconfigs; -my @preserved_kconfigs = split(/:/,$ENV{LMC_KEEP}); +my @preserved_kconfigs; +if (defined($ENV{'LMC_KEEP'})) { + @preserved_kconfigs = split(/:/,$ENV{LMC_KEEP}); +} sub in_preserved_kconfigs { my $kconfig = $config2kfile{$_[0]}; -- cgit v1.2.3