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authorVidya Sagar <vidyas@nvidia.com>2022-07-21 19:50:46 +0530
committerBjorn Helgaas <bhelgaas@google.com>2022-07-22 17:14:56 -0500
commit6646e99bcec627e866bc84365af37942c72b4b76 (patch)
treef39842c22920dedb3e1a7bb11fc33af27d1e0dd1 /drivers/pci/controller/dwc/pci-keystone.c
parent997b99e3b386bde1d519d39f5276b10c67a8f172 (diff)
PCI: tegra194: Fix Root Port interrupt handling
As part of Root Port interrupt handling, level-0 register is read first and based on the bits set in that, corresponding level-1 registers are read for further interrupt processing. Since both these values are currently read into the same 'val' variable, checking level-0 bits the second time around is happening on the 'val' variable value of level-1 register contents instead of freshly reading the level-0 value again. Fix by using different variables to store level-0 and level-1 registers contents. Link: https://lore.kernel.org/r/20220721142052.25971-11-vidyas@nvidia.com Fixes: 56e15a238d92 ("PCI: tegra: Add Tegra194 PCIe support") Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/controller/dwc/pci-keystone.c')
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