[PATCH] remoteproc: imx_rproc: Fix a resource leak in the remove function

[Peng Fan]

> Subject: Re: [PATCH] remoteproc: imx_rproc: Fix a resource leak in the
> remove function
> 
> On Sat, Oct 16, 2021 at 08:44:28AM +0200, Christophe JAILLET wrote:
> > 'priv->workqueue' is destroyed in the error handling path of the probe
> > but not in the remove function.
> >
> > Add the missing call to release some resources.
> >
> > Fixes: 2df7062002d0 ("remoteproc: imx_proc: enable virtio/mailbox")
> > Signed-off-by: Christophe JAILLET <christophe.jaillet at wanadoo.fr>
> > ---
> > This patch is speculative. I'm not sure if the added function call is
> > at the right place in the remove function.
> > Review with care.
> > ---
> >  drivers/remoteproc/imx_rproc.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/remoteproc/imx_rproc.c
> > b/drivers/remoteproc/imx_rproc.c index ff8170dbbc3c..0a45bc0d3f73
> > 100644
> > --- a/drivers/remoteproc/imx_rproc.c
> > +++ b/drivers/remoteproc/imx_rproc.c
> > @@ -804,6 +804,7 @@ static int imx_rproc_remove(struct platform_device
> *pdev)
> >  	clk_disable_unprepare(priv->clk);
> >  	rproc_del(rproc);
> >  	imx_rproc_free_mbox(rproc);
> > +	destroy_workqueue(priv->workqueue);
> 
> This seems to be the right thing to do. Peng - please review and test on your
> side.

Sorry for late reply, I built the driver as a module with this patch. And no issue found.

THnaks,
Peng.

> 
> Thanks,
> Mathieu
> 
> >  	rproc_free(rproc);
> >
> >  	return 0;
> > --
> > 2.30.2
> >