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msm: camera: Adds state variable in mem manager

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Add state variable for camera mem manager to show initialization status.
Ensure that all operations are rejected before initialization.

Change-Id: I1ddbaaf6fbed59e4804476562c97f6895d99e916
Signed-off-by: Trishansh Bhardwaj <tbhardwa@codeaurora.org>
This commit is contained in:
Jigarkumar Zala 2019-06-11 11:32:53 -07:00 • committed by Gerrit - the friendly Code Review server
commit aeffc3147d
1 changed files with 5 additions and 0 deletions
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5
drivers/cam_req_mgr/cam_mem_mgr.c
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@ -234,6 +234,11 @@ int cam_mem_get_cpu_buf(int32_t buf_handle, uintptr_t *vaddr_ptr, size_t *len)
return -EINVAL;
}
if (!atomic_read(&cam_mem_mgr_state)) {
CAM_ERR(CAM_MEM, "failed. mem_mgr not initialized");
return -EINVAL;
}
if (!buf_handle || !vaddr_ptr || !len)
return -EINVAL;