kconfig: fix mconf segmentation fault

[cascardo/linux.git] / scripts / kconfig / zconf.l

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index cfa4607..187d38c 100644 (file)
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -265,7 +265,7 @@ FILE *zconf_fopen(const char *name)
        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);