mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-10-01 01:35:54 -04:00
44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
From c9a6f09f1030cec591df837622cb54bbb2d24ddc Mon Sep 17 00:00:00 2001
|
|
From: Sandeep Panda <spanda@codeaurora.org>
|
|
Date: Fri, 12 May 2017 10:56:32 +0530
|
|
Subject: msm: mdss: remove client from device list if failed to register
|
|
|
|
If there is any failure while registering a DBA client with MDSS
|
|
driver, then remove the client from device client list first and
|
|
then free the client. Otherwise driver might crash when
|
|
traversing the device client list in later stage, because of an
|
|
uninitialized entry in the list.
|
|
|
|
Change-Id: I60666f4c3dea5c7ea7b7c77bcb14b080ee25b54d
|
|
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>
|
|
---
|
|
drivers/video/fbdev/msm/msm_dba/msm_dba.c | 7 ++++++-
|
|
1 file changed, 6 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/drivers/video/fbdev/msm/msm_dba/msm_dba.c b/drivers/video/fbdev/msm/msm_dba/msm_dba.c
|
|
index 7a5c9d9..cc6512a 100644
|
|
--- a/drivers/video/fbdev/msm/msm_dba/msm_dba.c
|
|
+++ b/drivers/video/fbdev/msm/msm_dba/msm_dba.c
|
|
@@ -1,5 +1,5 @@
|
|
/*
|
|
- * Copyright (c) 2015, The Linux Foundation. All rights reserved.
|
|
+ * Copyright (c) 2015,2017, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
@@ -80,6 +80,11 @@ void *msm_dba_register_client(struct msm_dba_reg_info *info,
|
|
if (rc) {
|
|
pr_err("%s: Client register failed (%s, %d)\n",
|
|
__func__, info->chip_name, info->instance_id);
|
|
+ /* remove the client from list before freeing */
|
|
+ mutex_lock_nested(&device->dev_mutex,
|
|
+ SINGLE_DEPTH_NESTING);
|
|
+ list_del(&client->list);
|
|
+ mutex_unlock(&device->dev_mutex);
|
|
kfree(client);
|
|
mutex_unlock(®ister_mutex);
|
|
return ERR_PTR(rc);
|
|
--
|
|
cgit v1.1
|
|
|