mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-12 17:34:30 -05:00
85 lines
2.8 KiB
Diff
85 lines
2.8 KiB
Diff
From 270bb9351889878dbfc87a6797886cb3caf42430 Mon Sep 17 00:00:00 2001
|
|
From: kaiwang <kaiwang@codeaurora.org>
|
|
Date: Tue, 27 Jun 2017 19:29:03 +0800
|
|
Subject: [PATCH] msm: camera: sensor:validating the flash initialization
|
|
parameters
|
|
|
|
Copying the flash initialization parameters from userspace memory to
|
|
kernel memory and in turn checking for the validity of the flash
|
|
initialization parameters pointer sent from userspace
|
|
|
|
CRs-Fixed: 2059812
|
|
Bug: 37949660
|
|
Change-Id: I957c10959108eb08b263d439a9a449b90338b6db
|
|
Signed-off-by: kaiwang <kaiwang@codeaurora.org>
|
|
---
|
|
.../msm/camera_v2/sensor/flash/msm_flash.c | 38 +++++++++++++++++-----
|
|
1 file changed, 30 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/drivers/media/platform/msm/camera_v2/sensor/flash/msm_flash.c b/drivers/media/platform/msm/camera_v2/sensor/flash/msm_flash.c
|
|
index 4a13ef87898d7..0390e0e60deab 100644
|
|
--- a/drivers/media/platform/msm/camera_v2/sensor/flash/msm_flash.c
|
|
+++ b/drivers/media/platform/msm/camera_v2/sensor/flash/msm_flash.c
|
|
@@ -498,22 +498,44 @@ static int32_t msm_flash_init(
|
|
return 0;
|
|
}
|
|
|
|
-#ifdef CONFIG_COMPAT
|
|
static int32_t msm_flash_init_prepare(
|
|
struct msm_flash_ctrl_t *flash_ctrl,
|
|
struct msm_flash_cfg_data_t *flash_data)
|
|
{
|
|
+#ifdef CONFIG_COMPAT
|
|
+ struct msm_flash_cfg_data_t flash_data_k;
|
|
+ struct msm_flash_init_info_t flash_init_info;
|
|
+ int32_t i = 0;
|
|
+ if(!is_compat_task()) {
|
|
+ /*for 64-bit usecase,it need copy the data to local memory*/
|
|
+ flash_data_k.cfg_type = flash_data->cfg_type;
|
|
+ for (i = 0; i < MAX_LED_TRIGGERS; i++) {
|
|
+ flash_data_k.flash_current[i] =
|
|
+ flash_data->flash_current[i];
|
|
+ flash_data_k.flash_duration[i] =
|
|
+ flash_data->flash_duration[i];
|
|
+ }
|
|
+
|
|
+ flash_data_k.cfg.flash_init_info = &flash_init_info;
|
|
+ if (copy_from_user(&flash_init_info,
|
|
+ (void *)(flash_data->cfg.flash_init_info),
|
|
+ sizeof(struct msm_flash_init_info_t))) {
|
|
+ pr_err("%s copy_from_user failed %d\n",
|
|
+ __func__, __LINE__);
|
|
+ return -EFAULT;
|
|
+ }
|
|
+ return msm_flash_init(flash_ctrl, &flash_data_k);
|
|
+ }
|
|
+ /*
|
|
+ * for 32-bit usecase,it already copy the userspace
|
|
+ * data to local memory in msm_flash_subdev_do_ioctl()
|
|
+ * so here do not need copy from user
|
|
+ */
|
|
return msm_flash_init(flash_ctrl, flash_data);
|
|
-}
|
|
#else
|
|
-static int32_t msm_flash_init_prepare(
|
|
- struct msm_flash_ctrl_t *flash_ctrl,
|
|
- struct msm_flash_cfg_data_t *flash_data)
|
|
-{
|
|
struct msm_flash_cfg_data_t flash_data_k;
|
|
struct msm_flash_init_info_t flash_init_info;
|
|
int32_t i = 0;
|
|
-
|
|
flash_data_k.cfg_type = flash_data->cfg_type;
|
|
for (i = 0; i < MAX_LED_TRIGGERS; i++) {
|
|
flash_data_k.flash_current[i] =
|
|
@@ -531,8 +553,8 @@ static int32_t msm_flash_init_prepare(
|
|
return -EFAULT;
|
|
}
|
|
return msm_flash_init(flash_ctrl, &flash_data_k);
|
|
-}
|
|
#endif
|
|
+}
|
|
|
|
static int32_t msm_flash_low(
|
|
struct msm_flash_ctrl_t *flash_ctrl,
|