[reactos] 05/09: [USBPORT] Acquire EndpointSpinLock in addition to MiniportSpinLock in USBPORT_ReopenPipe.

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=1946f6bb251aba0e109439...

commit 1946f6bb251aba0e10943989e23cf2d151977d3f
Author:     Thomas Faber [e-mail]
AuthorDate: Wed Mar 6 09:23:26 2019 +0100
Commit:     Thomas Faber [e-mail]
CommitDate: Mon Mar 11 08:53:52 2019 +0100

[USBPORT] Acquire EndpointSpinLock in addition to MiniportSpinLock in USBPORT_ReopenPipe.
---
 drivers/usb/usbport/endpoint.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/usbport/endpoint.c b/drivers/usb/usbport/endpoint.c
index c1624ec297..40efddf165 100644
--- a/drivers/usb/usbport/endpoint.c
+++ b/drivers/usb/usbport/endpoint.c
@@ -1186,13 +1186,15 @@ USBPORT_ReopenPipe(IN PDEVICE_OBJECT FdoDevice,
         USBPORT_Wait(FdoDevice, 1);
     }

-    KeAcquireSpinLock(&FdoExtension->MiniportSpinLock, &MiniportOldIrql);
+    KeAcquireSpinLock(&Endpoint->EndpointSpinLock, &Endpoint->EndpointOldIrql);
+    KeAcquireSpinLockAtDpcLevel(&FdoExtension->MiniportSpinLock);

Packet->SetEndpointState(FdoExtension->MiniPortExt,
                              Endpoint + 1,
                              USBPORT_ENDPOINT_REMOVE);

-    KeReleaseSpinLock(&FdoExtension->MiniportSpinLock, MiniportOldIrql);
+    KeReleaseSpinLockFromDpcLevel(&FdoExtension->MiniportSpinLock);
+    KeReleaseSpinLock(&Endpoint->EndpointSpinLock, Endpoint->EndpointOldIrql);

USBPORT_Wait(FdoDevice, 2);