linux-kernel - Re: [PATCH RESEND v3 04/10] PCI: bt1: Fix printing false error message

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Message-ID: <20230411110643.GF5333@thinkpad>
Date:   Tue, 11 Apr 2023 16:36:43 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Vinod Koul <vkoul@...nel.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Rob Herring <robh@...nel.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        linux-pci@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 04/10] PCI: bt1: Fix printing false error
 message

On Tue, Apr 11, 2023 at 06:39:22AM +0300, Serge Semin wrote:
> The dev_err_probe() method is supposed to be invoked only if any error is
> happened. It was definitely wrong to call it unconditionally. Due to that
> the DWC PCIe host initialization error-message is printed all the time the
> Baikal-T1 PCIe controller is probed even if no error actually happened.
> 
> Fixes: ba6ed462dcf4 ("PCI: dwc: Add Baikal-T1 PCIe controller support")
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  drivers/pci/controller/dwc/pcie-bt1.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-bt1.c b/drivers/pci/controller/dwc/pcie-bt1.c
> index e36a20bf82cf..6557141873ad 100644
> --- a/drivers/pci/controller/dwc/pcie-bt1.c
> +++ b/drivers/pci/controller/dwc/pcie-bt1.c
> @@ -597,8 +597,10 @@ static int bt1_pcie_add_port(struct bt1_pcie *btpci)
>  	dw_pcie_cap_set(&btpci->dw, REQ_RES);
>  
>  	ret = dw_pcie_host_init(&btpci->dw.pp);
> +	if (ret)
> +		dev_err_probe(dev, ret, "Failed to initialize DWC PCIe host\n");
>  
> -	return dev_err_probe(dev, ret, "Failed to initialize DWC PCIe host\n");
> +	return ret;
>  }
>  
>  static void bt1_pcie_del_port(struct bt1_pcie *btpci)
> -- 
> 2.40.0
> 
> 

-- 
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