On Thu, May 10, 2018 at 04:31:07PM -0700, Eric Anholt wrote:
> @@ -258,32 +181,40 @@ get_msg_context(struct vchiq_mmal_instance *instance)
> if (!msg_context)
> return ERR_PTR(-ENOMEM);
>
> - msg_context->instance = instance;
> - msg_context->handle =
> - mmal_context_map_create_handle(&instance->context_map,
> - msg_context,
> - GFP_KERNEL);
> + /* Create an ID that will be passed along with our message so
> + * that when we service the VCHI reply, we can look up what
> + * message is being replied to.
> + */
> + spin_lock(&instance->context_map_lock);
> + handle = idr_alloc(&instance->context_map, msg_context,
> + 0, 0, GFP_KERNEL);
> + spin_unlock(&instance->context_map_lock);
>
> - if (!msg_context->handle) {
> + if (msg_context->handle < 0) {
This should probably be testing:
if (handle < 0) {
> kfree(msg_context);
> - return ERR_PTR(-ENOMEM);
> + return ERR_PTR(handle);
> }
>
> + msg_context->instance = instance;
> + msg_context->handle = handle;
> +
> return msg_context;
> }
>
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