[PATCH v2 3/3] misc: pci_endpoint_test: Fix irq_type to convey the correct type

[Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>]

There are two variables that indicate the interrupt type to be used
in the next test execution, "irq_type" as global and test->irq_type.

The global is referenced from pci_endpoint_test_get_irq() to preserve
the current type for ioctl(PCITEST_GET_IRQTYPE).

The type set in this function isn't reflected in the global "irq_type",
so ioctl(PCITEST_GET_IRQTYPE) returns the previous type.
As a result, the wrong type will be displayed in "pcitest" as follows:

    # pcitest -i 0
    SET IRQ TYPE TO LEGACY:         OKAY
    # pcitest -I
    GET IRQ TYPE:           MSI

Fix this issue by propagating the current type to the global "irq_type".

Cc: stable@xxxxxxxxxxxxxxx
Fixes: b2ba9225e031 ("misc: pci_endpoint_test: Avoid using module parameter to determine irqtype")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
---
 drivers/misc/pci_endpoint_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index a342587fc78a..33058630cd50 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -742,6 +742,7 @@ static bool pci_endpoint_test_set_irq(struct pci_endpoint_test *test,
 	if (!pci_endpoint_test_request_irq(test))
 		goto err;
 
+	irq_type = test->irq_type;
 	return true;
 
 err:
-- 
2.25.1