X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/94ff46dc2849db4d43eaaf144872decc522aafb4..eb6b6ca394357805f2bdba989abae309f718b4d8:/iokit/Kernel/IOKitDebug.cpp

diff --git a/iokit/Kernel/IOKitDebug.cpp b/iokit/Kernel/IOKitDebug.cpp
index 9cf95e501..7c1a6a141 100644
--- a/iokit/Kernel/IOKitDebug.cpp
+++ b/iokit/Kernel/IOKitDebug.cpp
@@ -493,7 +493,7 @@ IOTrackingAddUser(IOTrackingQueue * queue, IOTrackingUser * mem, vm_size_t size)
 	if ((kernel_task != current_task()) && (self = proc_self())) {
 		bool user_64 = false;
 		mem->btPID  = proc_pid(self);
-		(void)backtrace_user(&mem->btUser[0], kIOTrackingCallSiteBTs - 1, &num,
+		num = backtrace_user(&mem->btUser[0], kIOTrackingCallSiteBTs - 1, NULL,
 		    &user_64, NULL);
 		mem->user32 = !user_64;
 		proc_rele(self);