---

yaml --- r: 36050 b: refs/heads/master c: 29b376f h: refs/heads/master v: v3
git-mirror · Sep 27, 2006 · b1dbc72 · b1dbc72
1 parent e37fe15
commit b1dbc72
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Showing 2 changed files with 11 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1fd6909802b837ed5510603846c0ce5938d296a1
+refs/heads/master: 29b376ff10aaea69ee4d93b70d0fbb2ebfd80f4e
diff --git a/trunk/arch/mips/kernel/process.c b/trunk/arch/mips/kernel/process.c
@@ -311,12 +311,19 @@ static inline int is_sp_move_ins(union mips_instruction *ip)
 static int get_frame_info(struct mips_frame_info *info)
 {
 	union mips_instruction *ip = info->func;
-	int i, max_insns =
-		min(128UL, info->func_size / sizeof(union mips_instruction));
+	unsigned max_insns = info->func_size / sizeof(union mips_instruction);
+	unsigned i;
 
 	info->pc_offset = -1;
 	info->frame_size = 0;
 
+	if (!ip)
+		goto err;
+
+	if (max_insns == 0)
+		max_insns = 128U;	/* unknown function size */
+	max_insns = min(128U, max_insns);
+
 	for (i = 0; i < max_insns; i++, ip++) {
 
 		if (is_jal_jalr_jr_ins(ip))
@@ -337,6 +344,7 @@ static int get_frame_info(struct mips_frame_info *info)
 	if (info->pc_offset < 0) /* leaf */
 		return 1;
 	/* prologue seems boggus... */
+err:
 	return -1;
 }