PCI: xilinx: Clear correct MSI set bit

Kernel provides virtual IRQ number at teardown.  Get hwirq number from
virtual IRQ and clear correct MSI set bit.

Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index de1c758d17d7..ec2844aeecce 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -221,13 +221,15 @@ static void xilinx_pcie_destroy_msi(unsigned int irq)
 {
         struct msi_desc *msi;
         struct xilinx_pcie_port *port;
+        struct irq_data *d = irq_get_irq_data(irq);
+        irq_hw_number_t hwirq = irqd_to_hwirq(d);
 
-        if (!test_bit(irq, msi_irq_in_use)) {
+        if (!test_bit(hwirq, msi_irq_in_use)) {
                 msi = irq_get_msi_desc(irq);
                 port = msi_desc_to_pci_sysdata(msi);
                 dev_err(port->dev, "Trying to free unused MSI#%d\n", irq);
         } else {
-                clear_bit(irq, msi_irq_in_use);
+                clear_bit(hwirq, msi_irq_in_use);
         }
 }