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Message-ID: <1536137433.31406.17.camel@mhfsdcap03>
Date: Wed, 5 Sep 2018 16:50:33 +0800
From: Honghui Zhang <honghui.zhang@...iatek.com>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
CC: Ryder Lee <ryder.lee@...iatek.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
<linux-pci@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PCI: mediatek: Fix unchecked return value
On Fri, 2018-07-20 at 10:01 -0500, Gustavo A. R. Silva wrote:
> Check return value of devm_pci_remap_iospace.
>
> Notice that, currently, all instances of devm_pci_remap_iospace
> are being checked.
>
> Addresses-Coverity-ID: 1471965 ("Unchecked return value")
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
> drivers/pci/controller/pcie-mediatek.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
Hi, Gustavo, thanks for your help.
Acked-by: Honghui Zhang <honghui.zhang@...iatek.com>
> diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
> index 861dda6..1477939 100644
> --- a/drivers/pci/controller/pcie-mediatek.c
> +++ b/drivers/pci/controller/pcie-mediatek.c
> @@ -1109,7 +1109,9 @@ static int mtk_pcie_request_resources(struct mtk_pcie *pcie)
> if (err < 0)
> return err;
>
> - devm_pci_remap_iospace(dev, &pcie->pio, pcie->io.start);
> + err = devm_pci_remap_iospace(dev, &pcie->pio, pcie->io.start);
> + if (err)
> + return err;
>
> return 0;
> }
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