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| author | Lucas Stach <l.stach@pengutronix.de> | 2014-03-28 17:52:58 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-05-30 11:24:58 -0600 |
| commit | 7f4f16eef5aeba31bdfb7702ced06a42f2777e04 (patch) | |
| tree | a10b8f076e0278742ba80181b2d3d3fba56777ad /drivers/pci/host/pci-exynos.c | |
| parent | 5c40eea7783bbcdd5795cd7d50b7b3fd9a94dc94 (diff) | |
| download | blackbird-op-linux-7f4f16eef5aeba31bdfb7702ced06a42f2777e04.tar.gz blackbird-op-linux-7f4f16eef5aeba31bdfb7702ced06a42f2777e04.zip | |
PCI: designware: Make MSI ISR shared IRQ aware
On i.MX6 the host controller MSI IRQ is shared with PCI legacy INTD. Make
sure we don't bail too early from the IRQ handler.
The issue is fairly theoretical as it would require a system setup with a
PCIe switch where one connected device is using legacy INTD and another one
using MSI, but better fix it now.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Richard Zhu <r65037@freescale.com>
Diffstat (limited to 'drivers/pci/host/pci-exynos.c')
| -rw-r--r-- | drivers/pci/host/pci-exynos.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c index 3de6bfbbe8e9..b616d34922d8 100644 --- a/drivers/pci/host/pci-exynos.c +++ b/drivers/pci/host/pci-exynos.c @@ -415,9 +415,7 @@ static irqreturn_t exynos_pcie_msi_irq_handler(int irq, void *arg) { struct pcie_port *pp = arg; - dw_handle_msi_irq(pp); - - return IRQ_HANDLED; + return dw_handle_msi_irq(pp); } static void exynos_pcie_msi_init(struct pcie_port *pp) |
