From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
To: Jingoo Han <jingoohan1@gmail.com>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/5] PCI: dwc: fix dw_pcie_free_msi() if msi_irq is invalid
Date: Tue, 26 Feb 2019 11:56:15 +0000 [thread overview]
Message-ID: <20190226194909.0e0c4758@xhacker.debian> (raw)
In-Reply-To: <20190226194806.34fc23b5@xhacker.debian>
we should check msi_irq before calling irq_set_chained_handler() and
irq_set_handler_data().
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
drivers/pci/controller/dwc/pcie-designware-host.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 0c18ab63811f..a94d3530b694 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -298,8 +298,10 @@ int dw_pcie_allocate_domains(struct pcie_port *pp)
void dw_pcie_free_msi(struct pcie_port *pp)
{
- irq_set_chained_handler(pp->msi_irq, NULL);
- irq_set_handler_data(pp->msi_irq, NULL);
+ if (pp->msi_irq) {
+ irq_set_chained_handler(pp->msi_irq, NULL);
+ irq_set_handler_data(pp->msi_irq, NULL);
+ }
irq_domain_remove(pp->msi_domain);
irq_domain_remove(pp->irq_domain);
--
2.20.1
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next prev parent reply other threads:[~2019-02-26 11:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-26 11:55 [PATCH 0/5] PCI: dwc: support remove Jisheng Zhang
2019-02-26 11:56 ` Jisheng Zhang [this message]
2019-02-26 11:56 ` [PATCH 2/5] PCI: dwc: free the page for MSI irq in dw_pcie_free_msi() Jisheng Zhang
2019-02-26 11:57 ` [PATCH 3/5] PCI: dwc: free msi in the error code path of dw_pcie_host_init() Jisheng Zhang
2019-02-26 11:58 ` [PATCH 4/5] PCI: dwc: use devm_pci_alloc_host_bridge() to simplify the code Jisheng Zhang
2019-02-26 11:59 ` [PATCH 5/5] PCI: dwc: save root bus for driver remove Jisheng Zhang
2019-02-26 21:11 ` [PATCH 0/5] PCI: dwc: support remove Bjorn Helgaas
2019-02-27 6:48 ` Jisheng Zhang
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