linux-kernel - [PATCH] net: thunderx: Make use of the helper function dev_err

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Date:   Wed, 15 Sep 2021 22:58:42 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Sunil Goutham <sgoutham@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] net: thunderx: Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, and simplify the code.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/net/ethernet/cavium/thunder/nic_main.c    | 3 +--
 drivers/net/ethernet/cavium/thunder/nicvf_main.c  | 6 ++----
 drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 3 +--
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 691e1475d55e..b3d7d1afced7 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -1311,9 +1311,8 @@ static int nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	err = pci_enable_device(pdev);
 	if (err) {
-		dev_err(dev, "Failed to enable PCI device\n");
 		pci_set_drvdata(pdev, NULL);
-		return err;
+		return dev_err_probe(dev, err, "Failed to enable PCI device\n");
 	}
 
 	err = pci_request_regions(pdev, DRV_NAME);
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index d1667b759522..2b87565781a0 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -2119,10 +2119,8 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	err = pci_enable_device(pdev);
-	if (err) {
-		dev_err(dev, "Failed to enable PCI device\n");
-		return err;
-	}
+	if (err)
+		return dev_err_probe(dev, err, "Failed to enable PCI device\n");
 
 	err = pci_request_regions(pdev, DRV_NAME);
 	if (err) {
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index c36fed9c3d73..db66d4beb28a 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1597,9 +1597,8 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	err = pcim_enable_device(pdev);
 	if (err) {
-		dev_err(dev, "Failed to enable PCI device\n");
 		pci_set_drvdata(pdev, NULL);
-		return err;
+		return dev_err_probe(dev, err, "Failed to enable PCI device\n");
 	}
 
 	err = pci_request_regions(pdev, DRV_NAME);
-- 
2.25.1