Re: [PATCH 5/5] dmaengine: moxart-dma: Fix memory leak when stopping a running transfer

From: Vinod Koul
Date: Mon Mar 30 2015 - 13:53:49 EST


On Fri, Mar 27, 2015 at 01:35:55PM +0200, Peter Ujfalusi wrote:
> The vd->node is removed from the lists when the transfer started so the
> vchan_get_all_descriptors() will not find it. This results memory leak.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> CC: Jonas Jensen <jonas.jensen@xxxxxxxxx>
Applied, thanks

--
~Vinod

> ---
> drivers/dma/moxart-dma.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c
> index 15cab7d79525..b4634109e010 100644
> --- a/drivers/dma/moxart-dma.c
> +++ b/drivers/dma/moxart-dma.c
> @@ -193,8 +193,10 @@ static int moxart_terminate_all(struct dma_chan *chan)
>
> spin_lock_irqsave(&ch->vc.lock, flags);
>
> - if (ch->desc)
> + if (ch->desc) {
> + moxart_dma_desc_free(&ch->desc->vd);
> ch->desc = NULL;
> + }
>
> ctrl = readl(ch->base + REG_OFF_CTRL);
> ctrl &= ~(APB_DMA_ENABLE | APB_DMA_FIN_INT_EN | APB_DMA_ERR_INT_EN);
> --
> 2.3.3
>

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