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PCI: brcmstb: Remove chained 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 2cf5a03cb2 ("PCI/keystone: Fix race in installing chained
IRQ handler").

Link: https://lore.kernel.org/r/20210115211532.19837-1-martin@kaiser.cx
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
This commit is contained in:
Martin Kaiser 2021-01-15 22:15:32 +01:00 committed by Lorenzo Pieralisi
parent ff591f7490
commit 5ce6697a44
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/controller/pcie-brcmstb.c
View File

@ -603,8 +603,7 @@ static void brcm_msi_remove(struct brcm_pcie *pcie)
if (!msi)
return;
irq_set_chained_handler(msi->irq, NULL);
irq_set_handler_data(msi->irq, NULL);
irq_set_chained_handler_and_data(msi->irq, NULL, NULL);
brcm_free_domains(msi);
}