Fix an issue with posponed matching (method IOTimerEventSource::timerEventSource could fail).

Author: lvs1974

AirportBrcmFixup/kern_brcmfx.cpp

@@ -431,13 +431,15 @@ void BRCMFX::processKext(KernelPatcher &patcher, size_t index, mach_vm_address_t
 					workLoop = IOWorkLoop::workLoop();
 
 				if (workLoop) {
-					matchingTimer = IOTimerEventSource::timerEventSource(ADDPR(selfInstance),
+					matchingTimer = IOTimerEventSource::timerEventSource(workLoop,
 					[](OSObject *owner, IOTimerEventSource *) {
 						callbackBRCMFX->startMatching();
 					});
 
 					if (matchingTimer) {
-						workLoop->addEventSource(matchingTimer);
+						IOReturn result = workLoop->addEventSource(matchingTimer);
+						if (result != kIOReturnSuccess)
+							SYSLOG("BRCMFX", "addEventSource failed");
 					}
 					else
 						SYSLOG("BRCMFX", "timerEventSource failed");

Changelog.md

@@ -126,3 +126,6 @@ It can be used if you have masked pin 53 (CLKREQ#) and APSM L0|L1 is working.
 - Add pci14e4,4331, pci14e4,4353  and pci14e4,4357  into AirPortBrcmNIC_Injector.kext  (in 11.0 only AirPortBrcmNIC can support these devices)
 - Added MacKernelSDK with Xcode 12 compatibility
 - Fixed macOS 10.8 compatibility (without ASPM support)
+
+#### v2.1.1
+- Fix an issue with posponed matching (method IOTimerEventSource::timerEventSource could fail)