From: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
To: Jisheng Zhang <Jisheng.Zhang@synaptics.com>,
Jingoo Han <jingoohan1@gmail.com>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>
Cc: "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: Re: [PATCH v2 1/5] PCI: dwc: Fix dw_pcie_free_msi() if msi_irq is invalid
Date: Wed, 13 Mar 2019 10:05:24 +0000 [thread overview]
Message-ID: <8a0bda6b-6879-e4ac-cfe6-171abbd72abd@synopsys.com> (raw)
In-Reply-To: <20190301125625.4e15d869@xhacker.debian>
On 01/03/2019 05:03, Jisheng Zhang wrote:
> 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);
>
Sounds good.
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
next prev parent reply other threads:[~2019-03-13 10:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-01 5:02 [PATCH v2 0/5] PCI: dwc: Support remove Jisheng Zhang
2019-03-01 5:03 ` [PATCH v2 1/5] PCI: dwc: Fix dw_pcie_free_msi() if msi_irq is invalid Jisheng Zhang
2019-03-13 10:05 ` Gustavo Pimentel [this message]
2019-03-01 5:04 ` [PATCH v2 2/5] PCI: dwc: Free the page for MSI IRQ in dw_pcie_free_msi() Jisheng Zhang
2019-03-13 10:12 ` Gustavo Pimentel
2019-03-01 5:05 ` [PATCH v2 3/5] PCI: dwc: Free MSI in the error code path of dw_pcie_host_init() Jisheng Zhang
2019-03-13 10:24 ` Gustavo Pimentel
2019-03-01 5:06 ` [PATCH v2 4/5] PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify the code Jisheng Zhang
2019-03-13 10:37 ` Gustavo Pimentel
2019-03-01 5:06 ` [PATCH v2 5/5] PCI: dwc: Save root bus for driver remove Jisheng Zhang
2019-03-13 10:33 ` Gustavo Pimentel
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