From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 24 Apr 2006 09:48:54 +0000 (+0100)
Subject: [MIPS] Fix oprofile module unloading
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=49e31ca8387227898710f99476f2217ea154aab0;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[MIPS] Fix oprofile module unloading

When unloading oprofile module with timer-mode, oprofile_arch_exit
dereferences a NULL pointer.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index 935dd851f480..49ef8fd338d6 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -114,5 +114,6 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 
 void oprofile_arch_exit(void)
 {
-	model->exit();
+	if (model)
+		model->exit();
 }