From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Dan Carpenter <dan.carpenter@linaro.org>
Cc: "Kishon Vijay Abraham I" <kishon@kernel.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Niklas Cassel" <cassel@kernel.org>,
"Siddharth Vadapalli" <s-vadapalli@ti.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Damien Le Moal" <dlemoal@kernel.org>,
"Yoshihiro Shimoda" <yoshihiro.shimoda.uh@renesas.com>,
"Aleksandr Mishin" <amishin@t-argos.ru>,
"Vignesh Raghavendra" <vigneshr@ti.com>,
"Jan Kiszka" <jan.kiszka@siemens.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] PCI: keystone: Fix && vs || typo
Date: Sun, 21 Jul 2024 13:55:38 +0530 [thread overview]
Message-ID: <20240721082538.GH1908@thinkpad> (raw)
In-Reply-To: <1b762a93-e1b2-4af3-8c04-c8843905c279@stanley.mountain>
On Fri, Jul 19, 2024 at 06:53:26PM -0500, Dan Carpenter wrote:
> This code accidentally uses && where || was intended. It potentially
> results in a NULL dereference.
>
> Fixes: 86f271f22bbb ("PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- Mani
> ---
> drivers/pci/controller/dwc/pci-keystone.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
> index 52c6420ae200..95a471d6a586 100644
> --- a/drivers/pci/controller/dwc/pci-keystone.c
> +++ b/drivers/pci/controller/dwc/pci-keystone.c
> @@ -577,7 +577,7 @@ static void ks_pcie_quirk(struct pci_dev *dev)
> */
> if (pci_match_id(am6_pci_devids, bridge)) {
> bridge_dev = pci_get_host_bridge_device(dev);
> - if (!bridge_dev && !bridge_dev->parent)
> + if (!bridge_dev || !bridge_dev->parent)
> return;
>
> ks_pcie = dev_get_drvdata(bridge_dev->parent);
> --
> 2.43.0
>
--
மணிவண்ணன் சதாசிவம்
next prev parent reply other threads:[~2024-07-21 8:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-19 23:53 [PATCH] PCI: keystone: Fix && vs || typo Dan Carpenter
2024-07-20 6:05 ` Siddharth Vadapalli
2024-07-21 8:25 ` Manivannan Sadhasivam [this message]
2024-08-13 20:23 ` Krzysztof Wilczyński
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