Re: [RFC PATCH v3 3/4] trace: Introduce trace log output function for STM

[Steven Rostedt <rostedt@goodmis.org>]

On Tue,  7 Jul 2015 18:10:42 +0800
Chunyan Zhang <zhang.chunyan@linaro.org> wrote:

> +static int alloc_stm_trace_buffer(void)
> +{
> +	struct trace_buffer_stm *buffer;
> +
> +	buffer = kzalloc(sizeof(struct trace_buffer_stm), GFP_KERNEL);
> +	if (!buffer)
> +		return -ENOMEM;
> +
> +	buffer->used_len = 0;
> +	buffer->size = ARRAY_SIZE(buffer->buffer);
> +
> +	trace_event_stm_buffer = buffer;
> +
> +	return 0;
> +}
> +
> +static __init int trace_stm_init_buffers(void)
> +{
> +	if (alloc_stm_trace_buffer())
> +		return -ENOMEM;
> +
> +	if (alloc_stm_tmp_seq())

This needs to free trace_event_stm_buffer.

-- Steve

> +		return -ENOMEM;
> +
> +	stm_buffers_allocated = 1;
> +
> +	return 0;
> +}
> +fs_initcall(trace_stm_init_buffers);