linux-kernel - [PATCH v4 04/14] PCI: bt1: Fix printing false error message

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Message-ID: <20230414021832.13167-5-Sergey.Semin@baikalelectronics.ru>
Date:   Fri, 14 Apr 2023 05:18:22 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     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>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Rob Herring <robh@...nel.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        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: [PATCH v4 04/14] PCI: bt1: Fix printing false error message

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>
---
 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