Maarten Lankhorst : quartz: Don't free a null media type in the file source .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4763e83b60528a8564332d3ba18c51d3e4509f6c
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=4763e83b60528a8564332d3ba18c51d3e4509f6c

Author: Maarten Lankhorst <m.b.lankhorst at gmail.com>
Date:   Mon Apr  7 22:31:15 2008 -0700

quartz: Don't free a null media type in the file source.

---

 dlls/quartz/filesource.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/dlls/quartz/filesource.c b/dlls/quartz/filesource.c
index fd977f9..b2d6838 100644
--- a/dlls/quartz/filesource.c
+++ b/dlls/quartz/filesource.c
@@ -96,6 +96,7 @@ static HRESULT process_extensions(HKEY hkeyExtensions, LPCOLESTR pszFileName, GU
     size = sizeof(keying);
     if (!l)
         l = RegQueryValueExW(hsub, subtype_name, NULL, NULL, (LPBYTE)keying, &size);
+
     if (!l)
         CLSIDFromString(keying, minorType);
 
@@ -433,7 +434,8 @@ static ULONG WINAPI AsyncReader_Release(IBaseFilter * iface)
         DeleteCriticalSection(&This->csFilter);
         This->lpVtbl = NULL;
         CoTaskMemFree(This->pszFileName);
-        FreeMediaType(This->pmt);
+        if (This->pmt)
+            FreeMediaType(This->pmt);
         CoTaskMemFree(This);
         return 0;
     }
@@ -681,7 +683,8 @@ static HRESULT WINAPI FileSource_Load(IFileSourceFilter * iface, LPCOLESTR pszFi
         }
 
         CoTaskMemFree(This->pszFileName);
-        FreeMediaType(This->pmt);
+        if (This->pmt)
+            FreeMediaType(This->pmt);
         This->pszFileName = NULL;
         This->pmt = NULL;