diff options
| author | Pali Rohár <[email protected]> | 2022-01-10 01:50:00 +0000 |
|---|---|---|
| committer | Lorenzo Pieralisi <[email protected]> | 2022-02-08 10:41:43 +0000 |
| commit | 51f96e287c6f003d3bb29672811c757c5fbf0028 (patch) | |
| tree | 6a300ed44dec18502d45b1f1d69eaa6efdb5fd1f /drivers/pci/controller/pci-aardvark.c | |
| parent | PCI: aardvark: Rewrite IRQ code to chained IRQ handler (diff) | |
| download | kernel-51f96e287c6f003d3bb29672811c757c5fbf0028.tar.gz kernel-51f96e287c6f003d3bb29672811c757c5fbf0028.zip | |
PCI: aardvark: Check return value of generic_handle_domain_irq() when processing INTx IRQ
It is possible that we receive spurious INTx interrupt. Check for the
return value of generic_handle_domain_irq() when processing INTx IRQ.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Marek Behún <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Diffstat (limited to 'drivers/pci/controller/pci-aardvark.c')
| -rw-r--r-- | drivers/pci/controller/pci-aardvark.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index d7ee7a22c206..0fb3847bdc4e 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -1425,7 +1425,9 @@ static void advk_pcie_handle_int(struct advk_pcie *pcie) advk_writel(pcie, PCIE_ISR1_INTX_ASSERT(i), PCIE_ISR1_REG); - generic_handle_domain_irq(pcie->irq_domain, i); + if (generic_handle_domain_irq(pcie->irq_domain, i) == -EINVAL) + dev_err_ratelimited(&pcie->pdev->dev, "unexpected INT%c IRQ\n", + (char)i + 'A'); } } |