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SubjectRE: [PATCH] fpga: dfl: afu: Corrected error handling levels
Date
> -----Original Message-----
> From: Xu, Yilun <yilun.xu@intel.com>
> Sent: Thursday, May 14, 2020 10:30 AM
> To: Souptick Joarder <jrdr.linux@gmail.com>
> Cc: Wu, Hao <hao.wu@intel.com>; mdf@kernel.org; linux-
> fpga@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] fpga: dfl: afu: Corrected error handling levels
>
> The patch looks good to me.
>
> Maybe we could add the Fixes tag:
> Fixes: fa8dda1edef9 (fpga: dfl: afu: add
> DFL_FPGA_PORT_DMA_MAP/UNMAP ioctls support)

Thanks for catching this problem.

With this line,
Acked-by: Wu Hao <hao.wu@intel.com>

Thanks!
Hao

>
> Thanks,
> Yilun
>
> On Thu, May 14, 2020 at 12:52:05AM +0530, Souptick Joarder wrote:
> > Corrected error handling goto sequnece. Level put_pages should
> > be called when pinned pages >= 0 && pinned != npages. Level
> > free_pages should be called when pinned pages < 0.
> >
> > Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> > ---
> > drivers/fpga/dfl-afu-dma-region.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-
> region.c
> > index 62f9244..5942343 100644
> > --- a/drivers/fpga/dfl-afu-dma-region.c
> > +++ b/drivers/fpga/dfl-afu-dma-region.c
> > @@ -61,10 +61,10 @@ static int afu_dma_pin_pages(struct
> dfl_feature_platform_data *pdata,
> > region->pages);
> > if (pinned < 0) {
> > ret = pinned;
> > - goto put_pages;
> > + goto free_pages;
> > } else if (pinned != npages) {
> > ret = -EFAULT;
> > - goto free_pages;
> > + goto put_pages;
> > }
> >
> > dev_dbg(dev, "%d pages pinned\n", pinned);
> > --
> > 1.9.1

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