Re: [PATCH v2] rtla: add a tag to avoid dereferring a NULL pointer

From: Daniel Bristot de Oliveira
Date: Fri Apr 08 2022 - 11:49:19 EST


Hi Wan

There is a typo in the subject, and it needs a capital letter after the ':'.

I suggest using something like:

rtla: Avoid record NULL pointer dereference

Do you mind sending a v3?

On 4/1/22 14:39, Wan Jiabing wrote:
> Fix the following null/deref_null.cocci errors:
> ./tools/tracing/rtla/src/osnoise_hist.c:870:31-36: ERROR: record is NULL but dereferenced.
> ./tools/tracing/rtla/src/osnoise_top.c:650:31-36: ERROR: record is NULL but dereferenced.
> ./tools/tracing/rtla/src/timerlat_hist.c:905:31-36: ERROR: record is NULL but dereferenced.
> ./tools/tracing/rtla/src/timerlat_top.c:700:31-36: ERROR: record is NULL but dereferenced.
>
> "record" is NULL before calling osnoise_init_trace_tool.
> Add a tag "out_free" to avoid dereferring a NULL pointer.
>
> Fixes: 51d64c3a1819 ("rtla: Add -e/--event support")
> Signed-off-by: Wan Jiabing <wanjiabing@xxxxxxxx>

Also adding:

Acked-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>

Thanks,
-- Daniel