[reactos] 10/10: [ISAPNP] Make sure that APCs are disabled before acquiring a lock

[Dmitry Borisov]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=fdc1d96dc1259093a07d6c...

commit fdc1d96dc1259093a07d6cd36c050716e831de74
Author:     Dmitry Borisov [e-mail]
AuthorDate: Sat Jul 6 00:50:03 2024 +0600
Commit:     Dmitry Borisov [e-mail]
CommitDate: Sat Aug 3 17:08:44 2024 +0600

[ISAPNP] Make sure that APCs are disabled before acquiring a lock

Note: We could just use a fast mutex instead
---
 drivers/bus/isapnp/isapnp.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bus/isapnp/isapnp.h b/drivers/bus/isapnp/isapnp.h
index 344cc23691d..8c58679d156 100644
--- a/drivers/bus/isapnp/isapnp.h
+++ b/drivers/bus/isapnp/isapnp.h
@@ -111,6 +111,8 @@ FORCEINLINE
 VOID
 IsaPnpAcquireBusDataLock(VOID)
 {
+    ASSERT(PsGetCurrentProcess() == PsInitialSystemProcess);
+
     KeWaitForSingleObject(&BusSyncEvent, Executive, KernelMode, FALSE, NULL);
 }

@@ -129,6 +131,8 @@ VOID
 IsaPnpAcquireDeviceDataLock(
     _In_ PISAPNP_FDO_EXTENSION FdoExt)
 {
+    ASSERT(PsGetCurrentProcess() == PsInitialSystemProcess);
+
     KeWaitForSingleObject(&FdoExt->DeviceSyncEvent, Executive, KernelMode, FALSE, NULL);
 }