linux-kernel - [PATCH v2] PCI: rockchip-ep: Fix error code in rockchip_pcie_ep_init_ob

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Message-ID: <Z014ylYz_xrrgI4W@stanley.mountain>
Date: Mon, 2 Dec 2024 12:07:22 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Damien Le Moal <dlemoal@...nel.org>
Cc: Shawn Lin <shawn.lin@...k-chips.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Heiko Stuebner <heiko@...ech.de>, linux-pci@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH v2] PCI: rockchip-ep: Fix error code in
 rockchip_pcie_ep_init_ob_mem()

Return -ENOMEM if pci_epc_mem_alloc_addr() fails.  Don't return success.

Fixes: 945648019466 ("PCI: rockchip-ep: Refactor rockchip_pcie_ep_probe() memory allocations")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
Reviewed-by: Damien Le Moal <dlemoal@...nel.org>
---
v2: Update the git hash for the Fixes tag because the tree was rebased I guess.

 drivers/pci/controller/pcie-rockchip-ep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 1064b7b06cef..34162ca14093 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -784,6 +784,7 @@ static int rockchip_pcie_ep_init_ob_mem(struct rockchip_pcie_ep *ep)
 						  SZ_1M);
 	if (!ep->irq_cpu_addr) {
 		dev_err(dev, "failed to reserve memory space for MSI\n");
+		err = -ENOMEM;
 		goto err_epc_mem_exit;
 	}
 
-- 
2.45.2