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| author |   Randy Dunlap <rdunlap@infradead.org> | 2020-08-26 14:21:43 -0700 |
|---|---|---|
| committer |   Masahiro Yamada <masahiroy@kernel.org> | 2020-09-03 12:16:30 +0900 |
| commit | a73fbfce2cc28883f659414d598e6e60ca2214b4 (patch) | |
| tree | d70bdad14355bd6d5ae9c6705eaea09ea6b07d04 /scripts | |
| parent | Documentation/llvm: Improve formatting of commands, variables, and arguments (diff) | |
| download | linux-dev-a73fbfce2cc28883f659414d598e6e60ca2214b4.tar.xz linux-dev-a73fbfce2cc28883f659414d598e6e60ca2214b4.zip | |
kconfig: streamline_config.pl: check defined(ENV variable) before using it
A user reported:
'Use of uninitialized value $ENV{"LMC_KEEP"} in split at
./scripts/kconfig/streamline_config.pl line 596.'
so first check that $ENV{LMC_KEEP} is defined before trying
to use it.
Fixes: c027b02d89fd ("streamline_config.pl: add LMC_KEEP to preserve some kconfigs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/kconfig/streamline_config.pl | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl index 19857d18d814..1c78ba49ca99 100755 --- a/scripts/kconfig/streamline_config.pl +++ b/scripts/kconfig/streamline_config.pl @@ -593,7 +593,10 @@ while ($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]}; |