linux-kernel - [PATCH] module: fix panic in is_imv_cond_end

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Date:	Mon, 12 May 2008 09:17:49 -0400
From:	Pavel Roskin <proski@....org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Ingo Molnar <mingo@...e.hu>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] module: fix panic in is_imv_cond_end_module()

Signed-off-by: Pavel Roskin <proski@....org>
---
The patch is for mingo/linux-2.6-ftrace.git repository.

 kernel/module.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)


diff --git a/kernel/module.c b/kernel/module.c
index 8f2f6fd..1831868 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2664,6 +2664,10 @@ EXPORT_SYMBOL_GPL(module_imv_update);
 int is_imv_cond_end_module(unsigned long addr1, unsigned long addr2)
 {
 	struct module *mod = __module_text_address(addr1);
+
+	if (!mod)
+		return 0;
+
 	return _is_imv_cond_end(mod->immediate_cond_end,
 		mod->immediate_cond_end + mod->num_immediate_cond_end,
 		addr1, addr2);

-- 
Regards,
Pavel Roskin
--
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