linux-kernel - [PATCH -next] PCI: xilinx-xdma: Remove redundant dev

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Date:   Mon, 30 Oct 2023 14:12:42 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     lpieralisi@...nel.org, kw@...ux.com, robh@...nel.org,
        bhelgaas@...gle.com, michal.simek@....com
Cc:     linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] PCI: xilinx-xdma: Remove redundant dev_err()

There is no need to call the dev_err() function directly to print a
custom message when handling an error from either the platform_get_irq()
or platform_get_irq_byname() functions as both are going to display an
appropriate error message in case of a failure.

./drivers/pci/controller/pcie-xilinx-dma-pl.c:688:2-9: line 688 is redundant because platform_get_irq() already prints an error
./drivers/pci/controller/pcie-xilinx-dma-pl.c:702:2-9: line 702 is redundant because platform_get_irq() already prints an error

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7074
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/pci/controller/pcie-xilinx-dma-pl.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/controller/pcie-xilinx-dma-pl.c b/drivers/pci/controller/pcie-xilinx-dma-pl.c
index 2f7d676c683c..4e49b12a2e2a 100644
--- a/drivers/pci/controller/pcie-xilinx-dma-pl.c
+++ b/drivers/pci/controller/pcie-xilinx-dma-pl.c
@@ -684,10 +684,8 @@ static int xilinx_request_msi_irq(struct pl_dma_pcie *port)
 	int ret;
 
 	port->msi.irq_msi0 = platform_get_irq_byname(pdev, "msi0");
-	if (port->msi.irq_msi0 <= 0) {
-		dev_err(dev, "Unable to find msi0 IRQ line\n");
+	if (port->msi.irq_msi0 <= 0)
 		return port->msi.irq_msi0;
-	}
 
 	ret = devm_request_irq(dev, port->msi.irq_msi0, xilinx_pl_dma_pcie_msi_handler_low,
 			       IRQF_SHARED | IRQF_NO_THREAD, "xlnx-pcie-dma-pl",
@@ -698,10 +696,8 @@ static int xilinx_request_msi_irq(struct pl_dma_pcie *port)
 	}
 
 	port->msi.irq_msi1 = platform_get_irq_byname(pdev, "msi1");
-	if (port->msi.irq_msi1 <= 0) {
-		dev_err(dev, "Unable to find msi1 IRQ line\n");
+	if (port->msi.irq_msi1 <= 0)
 		return port->msi.irq_msi1;
-	}
 
 	ret = devm_request_irq(dev, port->msi.irq_msi1, xilinx_pl_dma_pcie_msi_handler_high,
 			       IRQF_SHARED | IRQF_NO_THREAD, "xlnx-pcie-dma-pl",
-- 
2.20.1.7.g153144c