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qseecom: Check error when allocating coherent buffer

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Add check to verify whether memory is allocated properly or not
and return error if its failed to allocate coherent buffer.

Change-Id: I234a637d20228d047f6fc11d374b6f13f28fed03
Signed-off-by: Gaurav Kashyap <gaurkash@codeaurora.org>
Signed-off-by: AnilKumar Chimata <anilc@codeaurora.org>
This commit is contained in:
AnilKumar Chimata 2020-07-25 12:34:02 +05:30 • committed by Gerrit - the friendly Code Review server
commit 547cc33976
1 changed files with 19 additions and 1 deletions
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20
drivers/misc/qseecom.c
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@ -4396,6 +4396,11 @@ static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data,
/* Allocate kernel buffer for request and response*/
ret = __qseecom_alloc_coherent_buf(req.cmd_req_len + req.resp_len,
&va, &pa);
if (ret) {
pr_err("Failed to allocate coherent buf, ret %d\n", ret);
return ret;
}
req.cmd_req_buf = va;
send_cmd_req.cmd_req_buf = (void *)pa;
@ -9367,6 +9372,14 @@ static int qseecom_init_dev(struct platform_device *pdev)
}
}
dma_set_max_seg_size(qseecom.dev, DMA_BIT_MASK(32));
rc = of_reserved_mem_device_init_by_idx(&pdev->dev,
(&pdev->dev)->of_node, 0);
if (rc) {
pr_err("Failed to initialize reserved mem, ret %d\n", rc);
goto exit_del_cdev;
}
return 0;
exit_del_cdev:
@ -9536,11 +9549,16 @@ static int qseecom_register_heap_shmbridge(uint32_t heapid, uint64_t *handle)
return -EINVAL;
}
rmem = of_reserved_mem_lookup(node);
of_node_put(node);
if (!rmem) {
pr_err("unable to acquire memory-region of heap %d\n", heapid);
return -EINVAL;
}
ret = of_reserved_mem_device_init_by_idx(ion_dev, node, 0);
of_node_put(node);
if (ret) {
pr_err("Failed to initialize reserved mem, ret %d\n", ret);
return ret;
}
heap_pa = rmem->base;
heap_size = (size_t)rmem->size;