From: Masahiro Yamada <masahi...@kernel.org>
[ Upstream commit 135b4957eac43af2aedf8e2a277b9540f33c2558 ]
$(error-if,...) is expanded to an empty string. Currently, it relies on
eval_clause() returning xstrdup("") when all attempts for expansion fail,
but the correct implementation is to make do_error_if() return xstrdup("").
Fixes: 1d6272e6fe43 ("kconfig: add 'info', 'warning-if', and 'error-if'
built-in functions")
Signed-off-by: Masahiro Yamada <masahi...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
scripts/kconfig/preprocess.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 0243086fb1685..0590f86df6e40 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -114,7 +114,7 @@ static char *do_error_if(int argc, char *argv[])
if (!strcmp(argv[0], "y"))
pperror("%s", argv[1]);
- return NULL;
+ return xstrdup("");
}
static char *do_filename(int argc, char *argv[])
--
2.27.0
