Debugger: Fix CID 1223239.

- Rework part of report generator to add missing memory allocation
  error checks.

src/apps/debugger/controllers/DebugReportGenerator.cpp

@@ -16,6 +16,7 @@
 
 #include "Architecture.h"
 #include "AreaInfo.h"
+#include "AutoDeleter.h"
 #include "CpuState.h"
 #include "DebuggerInterface.h"
 #include "DisassembledCode.h"
@@ -235,18 +236,20 @@ DebugReportGenerator::_GenerateReportHeader(BFile& _output)
 		fTeam->Name(), fTeam->ID());
 	WRITE_AND_CHECK(_output, data);
 
-	SystemInfo sysInfo;
-
-	uint32 topologyNodeCount = 0;
-	cpu_topology_node_info* topology = NULL;
-	get_cpu_topology_info(NULL, &topologyNodeCount);
-	if (topologyNodeCount != 0)
-		topology = new cpu_topology_node_info[topologyNodeCount];
-	get_cpu_topology_info(topology, &topologyNodeCount);
-
 	cpu_platform platform = B_CPU_UNKNOWN;
 	cpu_vendor cpuVendor = B_CPU_VENDOR_UNKNOWN;
 	uint32 cpuModel = 0;
+	uint32 topologyNodeCount = 0;
+	cpu_topology_node_info* topology = NULL;
+	get_cpu_topology_info(NULL, &topologyNodeCount);
+	if (topologyNodeCount != 0) {
+		topology = new(std::nothrow) cpu_topology_node_info[topologyNodeCount];
+		if (topology == NULL)
+			return B_NO_MEMORY;
+
+		BPrivate::ArrayDeleter<cpu_topology_node_info> deleter(topology);
+		get_cpu_topology_info(topology, &topologyNodeCount);
+
 		for (uint32 i = 0; i < topologyNodeCount; i++) {
 			switch (topology[i].type) {
 				case B_TOPOLOGY_ROOT:
@@ -265,7 +268,9 @@ DebugReportGenerator::_GenerateReportHeader(BFile& _output)
 					break;
 			}
 		}
+	}
 
+	SystemInfo sysInfo;
 	if (fDebuggerInterface->GetSystemInfo(sysInfo) == B_OK) {
 		const system_info &info = sysInfo.GetSystemInfo();
 		data.SetToFormat("CPU(s): %" B_PRId32 "x %s %s\n",
@@ -289,7 +294,6 @@ DebugReportGenerator::_GenerateReportHeader(BFile& _output)
 		WRITE_AND_CHECK(_output, data);
 	}
 
-	delete[] topology;
 	return B_OK;
 }