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[6/7] PCI: aardvark: Free config space for emulated root bridge when unbinding driver to fix memory leak

Message ID 20211031181233.9976-7-kabel@kernel.org
State New
Headers show
Series PCI: aardvark controller fixes BATCH 3 | expand

Commit Message

Marek Behún Oct. 31, 2021, 6:12 p.m. UTC 
From: Pali Rohár <pali@kernel.org>

Do it after disabling and masking all interrupts, since aardvark interrupt
handler accesses config space of emulated root bridge.

Fixes: 526a76991b7b ("PCI: aardvark: Implement driver 'remove' function and allow to build it as module")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/pci/controller/pci-aardvark.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 08b34accfe2f..b3d89cb449b6 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1734,6 +1734,9 @@  static int advk_pcie_remove(struct platform_device *pdev)
 	advk_pcie_remove_msi_irq_domain(pcie);
 	advk_pcie_remove_irq_domain(pcie);
 
+	/* Free config space for emulated root bridge */
+	pci_bridge_emul_cleanup(&pcie->bridge);
+
 	/* Disable outbound address windows mapping */
 	for (i = 0; i < OB_WIN_COUNT; i++)
 		advk_pcie_disable_ob_win(pcie, i);