[Patch 4/4] module: trim exception table in module_free()

[Amerigo Wang]

Just as the comment said, trim the exception table entries when
module_free() mod->module_init.

Signed-off-by: WANG Cong <amwang@xxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

---
Index: linux-2.6/arch/x86/kernel/module.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/module.c
+++ linux-2.6/arch/x86/kernel/module.c
@@ -64,8 +64,8 @@ void *module_alloc(unsigned long size)
 void module_free(struct module *mod, void *module_region)
 {
 	vfree(module_region);
-	/* FIXME: If module_region == mod->init_region, trim exception
-	   table entries. */
+	if (module_region == mod->module_init)
+		mod->num_exentries = 0;
 }
 
 /* We don't need anything special. */
--
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