diff options
| author | Martin Kaiser <martin@kaiser.cx> | 2021-01-15 22:24:34 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2021-01-18 16:48:06 +0100 |
| commit | ad1cc6b75a79471d14b64c32bf13067659ba2bac (patch) | |
| tree | 108b325e0ac2222b0e8cc01e990e88ea28561723 /drivers/pci | |
| parent | PCI: altera-msi: Remove IRQ handler and data in one go (diff) | |
| download | linux-ad1cc6b75a79471d14b64c32bf13067659ba2bac.tar.xz linux-ad1cc6b75a79471d14b64c32bf13067659ba2bac.zip | |
PCI: dwc: Remove IRQ handler and data in one go
Call irq_set_chained_handler_and_data() to clear the chained handler
and the handler's data under irq_desc->lock.
See also 2cf5a03cb29d ("PCI/keystone: Fix race in installing chained
IRQ handler").
Link: https://lore.kernel.org/r/20210115212435.19940-2-martin@kaiser.cx
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-host.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 8a84c005f32b..3837fff48944 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -258,10 +258,8 @@ int dw_pcie_allocate_domains(struct pcie_port *pp) static void dw_pcie_free_msi(struct pcie_port *pp) { - if (pp->msi_irq) { - irq_set_chained_handler(pp->msi_irq, NULL); - irq_set_handler_data(pp->msi_irq, NULL); - } + if (pp->msi_irq) + irq_set_chained_handler_and_data(pp->msi_irq, NULL, NULL); irq_domain_remove(pp->msi_domain); irq_domain_remove(pp->irq_domain); |