openwrt/target/linux/generic/backport-5.10/850-v5.17-0008-PCI-aardvark-Fix-memory-leak-in-driver-unbind.patch
John Audia 662d1f9f8d kernel: bump 5.10 to 5.10.110
Removed upstreamed:
  generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch
  generic/pending-5.10/850-0014-PCI-aardvark-Fix-reading-PCI_EXP_RTSTA_PME-bit-on-em.patch
  ipq40xx/patches-5.10/105-ipq40xx-fix-sleep-clock.patch

All patches automatically rebased.

Build system: x86_64
Build-tested: bcm2711/RPi4B, mt7622/RT3200
Run-tested: bcm2711/RPi4B, mt7622/RT3200
Compile-/run-tested: ath79/generic (Archer C7 v2).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[rebased in 22.03 tree]
Signed-off-by: John Audia <graysky@archlinux.us>
(cherry picked from commit b92ec82235)
2022-04-10 16:31:42 +01:00

34 lines
1.3 KiB
Diff

From 2f040a17f5061457ae95035326d3159eddc1e5cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 30 Nov 2021 18:29:10 +0100
Subject: [PATCH] PCI: aardvark: Fix memory leak in driver unbind
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Free config space for emulated root bridge when unbinding driver to fix
memory leak. Do it after disabling and masking all interrupts, since
aardvark interrupt handler accesses config space of emulated root
bridge.
Link: https://lore.kernel.org/r/20211130172913.9727-9-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---
drivers/pci/controller/pci-aardvark.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1737,6 +1737,9 @@ static int advk_pcie_remove(struct platf
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);