modpost: do not write out any file when error occurred

If an error occurs, modpost will fail anyway. Do not write out
any content (, which might be invalid).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 141370ebbfd342670d6c4679a069aae355e17d78..f0d48f65fb33f732d20771d8c0f780d91beea4dd 100644 (file)
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2333,6 +2333,9 @@ static void write_buf(struct buffer *b, const char *fname)
 {
        FILE *file;
 
+       if (error_occurred)
+               return;
+
        file = fopen(fname, "w");
        if (!file) {
                perror(fname);