mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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75 lines
2.7 KiB
Diff
75 lines
2.7 KiB
Diff
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From 27fbeb6b025d5d46ccb0497cbed4c6e78ed1c5cc Mon Sep 17 00:00:00 2001
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From: Vasko Kalanoski <vaskok@codeaurora.org>
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Date: Tue, 3 Feb 2015 13:17:44 +0200
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Subject: msm: camera: restructure data handling to be more robust
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add dynamic array allocation instead of static to prevent
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stack overflow.
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Change-Id: Id12ed5b01809021d2b1d1d71436f2523b575d9de
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Signed-off-by: Vasko Kalanoski <vaskok@codeaurora.org>
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---
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.../msm/camera_v2/sensor/io/msm_camera_cci_i2c.c | 25 +++++++++++++++-------
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1 file changed, 17 insertions(+), 8 deletions(-)
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diff --git a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
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index 4b0bde95..59ad29f 100644
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--- a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
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+++ b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
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@@ -1,4 +1,4 @@
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-/* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
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+/* Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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@@ -138,23 +138,30 @@ int32_t msm_camera_cci_i2c_write_seq(struct msm_camera_i2c_client *client,
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int32_t rc = -EFAULT;
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uint8_t i = 0;
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struct msm_camera_cci_ctrl cci_ctrl;
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- struct msm_camera_i2c_reg_array reg_conf_tbl[num_byte];
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+ struct msm_camera_i2c_reg_array *reg_conf_tbl = NULL;
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if ((client->addr_type != MSM_CAMERA_I2C_BYTE_ADDR
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&& client->addr_type != MSM_CAMERA_I2C_WORD_ADDR)
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|| num_byte == 0)
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return rc;
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- S_I2C_DBG("%s reg addr = 0x%x num bytes: %d\n",
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- __func__, addr, num_byte);
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- memset(reg_conf_tbl, 0,
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- num_byte * sizeof(struct msm_camera_i2c_reg_array));
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- reg_conf_tbl[0].reg_addr = addr;
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if (num_byte > I2C_SEQ_REG_DATA_MAX) {
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pr_err("%s: num_byte=%d clamped to max supported %d\n",
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__func__, num_byte, I2C_SEQ_REG_DATA_MAX);
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- num_byte = I2C_SEQ_REG_DATA_MAX;
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+ return rc;
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}
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+
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+ S_I2C_DBG("%s reg addr = 0x%x num bytes: %d\n",
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+ __func__, addr, num_byte);
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+
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+ reg_conf_tbl = kzalloc(num_byte *
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+ (sizeof(struct msm_camera_i2c_reg_array)), GFP_KERNEL);
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+ if (!reg_conf_tbl) {
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+ pr_err("%s:%d no memory\n", __func__, __LINE__);
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+ return -ENOMEM;
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+ }
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+
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+ reg_conf_tbl[0].reg_addr = addr;
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for (i = 0; i < num_byte; i++) {
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reg_conf_tbl[i].reg_data = data[i];
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reg_conf_tbl[i].delay = 0;
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@@ -169,6 +176,8 @@ int32_t msm_camera_cci_i2c_write_seq(struct msm_camera_i2c_client *client,
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core, ioctl, VIDIOC_MSM_CCI_CFG, &cci_ctrl);
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CDBG("%s line %d rc = %d\n", __func__, __LINE__, rc);
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rc = cci_ctrl.status;
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+ kfree(reg_conf_tbl);
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+ reg_conf_tbl = NULL;
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return rc;
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}
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--
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cgit v1.1
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