| Bizarrely, there is no lock taken in the irq_ack() helper. This
puts the ACK callback provided by a specific platform in a awkward
situation where there is no synchronization that would be expected
on other callback.
Introduce the required lock, giving some level of uniformity among
callbacks.
Fixes:  | ||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pci-dra7xx.c | ||
| pci-exynos.c | ||
| pci-imx6.c | ||
| pci-keystone.c | ||
| pci-layerscape.c | ||
| pcie-armada8k.c | ||
| pcie-artpec6.c | ||
| pcie-designware-ep.c | ||
| pcie-designware-host.c | ||
| pcie-designware-plat.c | ||
| pcie-designware.c | ||
| pcie-designware.h | ||
| pcie-hisi.c | ||
| pcie-histb.c | ||
| pcie-kirin.c | ||
| pcie-qcom.c | ||
| pcie-spear13xx.c | ||