[NTOSKRNL] Fix NtQuerySystemInformation not returning correct ResultLength for System...

svn path=/trunk/; revision=68024

diff --git a/reactos/ntoskrnl/ex/sysinfo.c b/reactos/ntoskrnl/ex/sysinfo.c
index d2bbac4..5a00c12 100644 (file)
--- a/reactos/ntoskrnl/ex/sysinfo.c
+++ b/reactos/ntoskrnl/ex/sysinfo.c
@@ -1291,9 +1291,10 @@ QSI_DEF(SystemFileCacheInformation)
 {
     SYSTEM_FILECACHE_INFORMATION *Sci = (SYSTEM_FILECACHE_INFORMATION *) Buffer;
 
 {
     SYSTEM_FILECACHE_INFORMATION *Sci = (SYSTEM_FILECACHE_INFORMATION *) Buffer;
 

-    if (Size < sizeof(SYSTEM_FILECACHE_INFORMATION))
+    *ReqSize = sizeof(SYSTEM_FILECACHE_INFORMATION);
+
+    if (Size < *ReqSize)

     {
     {

-        *ReqSize = sizeof(SYSTEM_FILECACHE_INFORMATION);

         return STATUS_INFO_LENGTH_MISMATCH;
     }
 
         return STATUS_INFO_LENGTH_MISMATCH;
     }