Re: [PATCH] drivers: dma: pch_dma.c: Avoid data race between probe and irq handler

From: Madhuparna Bhowmik
Date: Thu Apr 23 2020 - 14:13:44 EST


On Thu, Apr 23, 2020 at 11:49:35AM +0530, Vinod Koul wrote:
> On 16-04-20, 11:53, madhuparnabhowmik10@xxxxxxxxx wrote:
> > From: Madhuparna Bhowmik <madhuparnabhowmik10@xxxxxxxxx>
> >
> > pd->dma.dev is read in irq handler pd_irq().
> > However, it is set to pdev->dev after request_irq().
> > Therefore, set pd->dma.dev to pdev->dev before request_irq() to
> > avoid data race between pch_dma_probe() and pd_irq().
>
> Please use the right subsystem tag for patch. You can find that using
> git log on the respective subsystem, in this case it would have told you
> that it is dmaengine.
>
Sure, I will take care of this.

> I have fixed that up and applied it, thanks for the patch
>
Thank you,
Madhuparna
> --
> ~Vinod