[reactos] 01/01: [WINSPOOL] Properly fix a double free CORE-16715

[Joachim Henze]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=dde92f8ffa5d0eb6038c6…

commit dde92f8ffa5d0eb6038c6e8009bf79120b7b23d2
Author:     Joachim Henze <Joachim.Henze(a)reactos.org>
AuthorDate: Mon Aug 31 02:06:35 2020 +0200
Commit:     Joachim Henze <Joachim.Henze(a)reactos.org>
CommitDate: Mon Aug 31 02:06:35 2020 +0200

    [WINSPOOL] Properly fix a double free CORE-16715
    
    Addendum to 0.4.14-dev-957-g
    d90beaeed26863985486874aaa2a1c3422fd6d9f
    
    Many Thanks to the patches author Doug Lyons!
---
 win32ss/printing/base/winspool/printers.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/win32ss/printing/base/winspool/printers.c
b/win32ss/printing/base/winspool/printers.c
index 1c39d7ae009..dfff8223a87 100644
--- a/win32ss/printing/base/winspool/printers.c
+++ b/win32ss/printing/base/winspool/printers.c
@@ -668,7 +668,7 @@ DocumentPropertiesA(HWND hWnd, HANDLE hPrinter, LPSTR pDeviceName,
PDEVMODEA pDe
     PWSTR pwszDeviceName = NULL;
     PDEVMODEW pdmwInput = NULL;
     PDEVMODEW pdmwOutput = NULL;
-    BOOL bReturnValue = -1;
+    LONG lReturnValue = -1;
     DWORD cch;
 
     FIXME("DocumentPropertiesA(%p, %p, %s, %p, %p, %lu)\n", hWnd, hPrinter,
pDeviceName, pDevModeOutput, pDevModeInput, fMode);
@@ -716,15 +716,10 @@ DocumentPropertiesA(HWND hWnd, HANDLE hPrinter, LPSTR pDeviceName,
PDEVMODEA pDe
         }
     }
 
-    bReturnValue = DocumentPropertiesW(hWnd, hPrinter, pwszDeviceName, pdmwOutput,
pdmwInput, fMode);
-    FIXME("bReturnValue from DocumentPropertiesW is '%ld'.\n",
bReturnValue);
+    lReturnValue = DocumentPropertiesW(hWnd, hPrinter, pwszDeviceName, pdmwOutput,
pdmwInput, fMode);
+    FIXME("lReturnValue from DocumentPropertiesW is '%ld'.\n",
lReturnValue);
 
-    if (pwszDeviceName)
-    {
-        HeapFree(hProcessHeap, 0, pwszDeviceName);
-    }
-
-    if (bReturnValue < 0)
+    if (lReturnValue < 0)
     {
         FIXME("DocumentPropertiesW failed!\n");
         goto Cleanup;
@@ -745,7 +740,7 @@ Cleanup:
     if (pdmwOutput)
         HeapFree(hProcessHeap, 0, pdmwOutput);
 
-    return bReturnValue;
+    return lReturnValue;
 }
 
 PRINTER_INFO_9W * get_devmodeW(HANDLE hprn)