linux-kernel - [PATCH AUTOSEL 5.4 041/205] PCI: Fix missing bridge dma

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Date:   Thu, 16 Jan 2020 11:40:16 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Srinath Mannam <srinath.mannam@...adcom.com>,
        Sasha Levin <sashal@...nel.org>, linux-pci@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 041/205] PCI: Fix missing bridge dma_ranges resource list cleanup

From: Rob Herring <robh@...nel.org>

[ Upstream commit 7608158df3ed87a5c938c4a0b91f5b11101a9be1 ]

Commit e80a91ad302b ("PCI: Add dma_ranges window list") added a
dma_ranges resource list, but failed to correctly free the list when
devm_pci_alloc_host_bridge() is used.

Only the iproc host bridge driver is using the dma_ranges list.

Fixes: e80a91ad302b ("PCI: Add dma_ranges window list")
Link: https://lore.kernel.org/r/20191008012325.25700-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@...nel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Srinath Mannam <srinath.mannam@...adcom.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/pci/probe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 64ebe3e5e611..d3033873395d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -572,6 +572,7 @@ static void devm_pci_release_host_bridge_dev(struct device *dev)
 		bridge->release_fn(bridge);
 
 	pci_free_resource_list(&bridge->windows);
+	pci_free_resource_list(&bridge->dma_ranges);
 }
 
 static void pci_release_host_bridge_dev(struct device *dev)
-- 
2.20.1