evie/android_kernel_oneplus_msm8998
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qseecom: allocate sglistinfo buffer for kernel clients

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To support whitelist feature, sglistinfo table should also
be allocated from qseecom kernel APIs used by kernel client.
Besides, initialize sg in __qseecom_update_cmd_buf_64 to
address a static analysis warning.

Change-Id: I1f1967fd9e95444cca728f09e3e8f4914b2abb95
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
This commit is contained in:
Zhen Kong 2016-09-01 10:20:50 -07:00 • committed by Gerrit - the friendly Code Review server
parent ab26d09879
commit bde23716c3
1 changed files with 12 additions and 0 deletions
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12
drivers/misc/qseecom.c
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@ -3249,6 +3249,7 @@ static int __qseecom_update_cmd_buf_64(void *msg, bool cleanup,
}
}
len = QSEECOM_SG_LIST_BUF_HDR_SZ_64BIT;
sg = sg_ptr->sgl;
goto cleanup;
}
sg = sg_ptr->sgl;
@ -4015,12 +4016,21 @@ int qseecom_start_app(struct qseecom_handle **handle,
data->client.user_virt_sb_base = 0;
data->client.ihandle = NULL;
/* Allocate sglistinfo buffer for kernel client */
data->sglistinfo_ptr = kzalloc(SGLISTINFO_TABLE_SIZE, GFP_KERNEL);
if (!(data->sglistinfo_ptr)) {
kfree(data);
kfree(*handle);
*handle = NULL;
return -ENOMEM;
}
init_waitqueue_head(&data->abort_wq);
data->client.ihandle = ion_alloc(qseecom.ion_clnt, size, 4096,
ION_HEAP(ION_QSECOM_HEAP_ID), 0);
if (IS_ERR_OR_NULL(data->client.ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
kfree(data->sglistinfo_ptr);
kfree(data);
kfree(*handle);
*handle = NULL;
@ -4118,6 +4128,7 @@ int qseecom_start_app(struct qseecom_handle **handle,
return 0;
err:
kfree(data->sglistinfo_ptr);
kfree(data);
kfree(*handle);
*handle = NULL;
@ -4165,6 +4176,7 @@ int qseecom_shutdown_app(struct qseecom_handle **handle)
mutex_unlock(&app_access_lock);
if (ret == 0) {
kzfree(data->sglistinfo_ptr);
kzfree(data);
kzfree(*handle);
kzfree(kclient);