linux-kernel - [PATCH next] PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq

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Date:   Mon, 30 Oct 2023 00:27:57 -0700
From:   Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
To:     Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Michal Simek <michal.simek@....com>,
        Thippeswamy Havalige <thippeswamy.havalige@....com>,
        Bharat Kumar Gogada <bharat.kumar.gogada@....com>,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     dan.carpenter@...aro.org, kernel-janitors@...r.kernel.org,
        error27@...il.com, harshit.m.mogalapalli@...cle.com
Subject: [PATCH next] PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain()

Return -ENOMEM instead of zero(success) when it fails to get IRQ domain.

Fixes: 8d786149d78c ("PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
---
This is found with smatch and the patch is only compile tested.
---
 drivers/pci/controller/pcie-xilinx-dma-pl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-xilinx-dma-pl.c b/drivers/pci/controller/pcie-xilinx-dma-pl.c
index 2f7d676c683c..52f3211d11cd 100644
--- a/drivers/pci/controller/pcie-xilinx-dma-pl.c
+++ b/drivers/pci/controller/pcie-xilinx-dma-pl.c
@@ -576,7 +576,7 @@ static int xilinx_pl_dma_pcie_init_irq_domain(struct pl_dma_pcie *port)
 						  &intx_domain_ops, port);
 	if (!port->intx_domain) {
 		dev_err(dev, "Failed to get a INTx IRQ domain\n");
-		return PTR_ERR(port->intx_domain);
+		return -ENOMEM;
 	}
 
 	irq_domain_update_bus_token(port->intx_domain, DOMAIN_BUS_WIRED);
-- 
2.39.3