From 3849151a8fd01d1bc3536eb17949f862da900710 Mon Sep 17 00:00:00 2001
From: Christopher Li <sparse@chrisli.org>
Date: Fri, 9 Feb 2007 16:15:40 -0800
Subject: [PATCH] Fix core dump on anonymous symbol.

Using the following can generate anonymous symbol without
initializer expression.

	return (struct foo) {};

It would be nice if sparse does not crash on it.

Signed-Off-By: Christopher Li <sparse@chrisli.org>
---
 linearize.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/linearize.c b/linearize.c
index 13cdf716..7b43b2ce 100644
--- a/linearize.c
+++ b/linearize.c
@@ -116,14 +116,16 @@ const char *show_pseudo(pseudo_t pseudo)
 		}
 		expr = sym->initializer;
 		snprintf(buf, 64, "<anon symbol:%p>", sym);
-		switch (expr->type) {
-		case EXPR_VALUE:
-			snprintf(buf, 64, "<symbol value: %lld>", expr->value);
-			break;
-		case EXPR_STRING:
-			return show_string(expr->string);
-		default:
-			break;
+		if (expr) {
+			switch (expr->type) {
+			case EXPR_VALUE:
+				snprintf(buf, 64, "<symbol value: %lld>", expr->value);
+				break;
+			case EXPR_STRING:
+				return show_string(expr->string);
+			default:
+				break;
+			}
 		}
 		break;
 	}
-- 
2.11.4.GIT