From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <masahiroy@kernel.org>,
Kees Cook <keescook@chromium.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH] kconfig: fix return value of do_error_if()
Date: Sun, 20 Dec 2020 03:18:42 +0900 [thread overview]
Message-ID: <20201219181842.178250-1-masahiroy@kernel.org> (raw)
Kconfig expands a macro to a string. $(error-if,...) should be expanded
to an empty string, not NULL.
Fixes: 1d6272e6fe43 ("kconfig: add 'info', 'warning-if', and 'error-if' built-in functions")
Signed-off-by: Masahiro Yamada <masahiroy@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 0243086fb168..0590f86df6e4 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
reply other threads:[~2020-12-19 18:20 UTC|newest]
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