kconfig: fix mconf segmentation fault
I have found small bug in mconf, when you run it without any argument it
will sigsegv.
Without patch:
$ scripts/kconfig/mconf
Segmentation fault
With patch:
$ scripts/kconfig/mconf
can't find file (null)
Signed-off-by: Marcin Garski <mgarski@post.pl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/kconfig/lex.zconf.c_shipped b/scripts/kconfig/lex.zconf.c_shipped
index 800f8c7..0fdc904 100644
--- a/scripts/kconfig/lex.zconf.c_shipped
+++ b/scripts/kconfig/lex.zconf.c_shipped
@@ -2264,7 +2264,7 @@
FILE *f;
f = fopen(name, "r");
- if (!f && name[0] != '/') {
+ if (!f && name != NULL && name[0] != '/') {
env = getenv(SRCTREE);
if (env) {
sprintf(fullname, "%s/%s", env, name);