taskmgr: Fix a memory leak

[Andrew Talbot]

Changelog:
    taskmgr: Fix a memory leak.

diff --git a/programs/taskmgr/perfdata.c b/programs/taskmgr/perfdata.c
index 85001b3..611990f 100644
--- a/programs/taskmgr/perfdata.c
+++ b/programs/taskmgr/perfdata.c
@@ -124,8 +124,10 @@ void PerfDataRefresh(void)
     /* Get processor time information */
     SysProcessorTimeInfo = (PSYSTEM_PROCESSORTIME_INFO)malloc(sizeof(SYSTEM_PROCESSORTIME_INFO) * SystemBasicInfo.bKeNumberProcessors);
     status = NtQuerySystemInformation(SystemProcessorTimeInformation, SysProcessorTimeInfo, sizeof(SYSTEM_PROCESSORTIME_INFO) * SystemBasicInfo.bKeNumberProcessors, &ulSize);
-    if (status != NO_ERROR)
+    if (status != NO_ERROR) {
+        free(SysProcessorTimeInfo);
         return;
+    }
 
     /* Get handle information
      * We don't know how much data there is so just keep