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>
aarch64-laptops · May 6, 2007 · 11de39e · 11de39e
1 parent 767e581
commit 11de39e
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diff --git a/scripts/kconfig/lex.zconf.c_shipped b/scripts/kconfig/lex.zconf.c_shipped
@@ -2264,7 +2264,7 @@ 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);

diff --git 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);