[PATCH] PCI: Fix missing bridge dma_ranges resource list cleanup

[PATCH] PCI: Fix missing bridge dma_ranges resource list cleanup

[Rob Herring]

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")
Cc: Srinath Mannam <srinath.mannam@broadcom.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/pci/probe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3d5271a7a849..bdbc8490f962 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

Re: [PATCH] PCI: Fix missing bridge dma_ranges resource list cleanup

[Bjorn Helgaas]

On Mon, Oct 07, 2019 at 08:23:25PM -0500, Rob Herring wrote:
> 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")
> Cc: Srinath Mannam <srinath.mannam@broadcom.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Signed-off-by: Rob Herring <robh@kernel.org>

Applied to pci/resource for v5.5, thanks!

> ---
>  drivers/pci/probe.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 3d5271a7a849..bdbc8490f962 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
>