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Fix #11775.

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BitmapDrawingEngine:
- Check if fBitmap is NULL before releasing its reference. Since this is
  the case when a BitmapDrawingEngine is instantiated, this would lead to
  an app_server crash upon any attempt to make use of one.
This commit is contained in:
Rene Gollent
2015-01-23 16:41:35 -05:00
parent 86f6a66bbe
commit f6099728e4
1 changed files with 5 additions and 3 deletions
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src/servers/app/drawing/BitmapDrawingEngine.cpp
+5 -3
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@@ -48,7 +48,7 @@ BitmapDrawingEngine::SetSize(int32 newWidth, int32 newHeight)
} }
SetHWInterface(NULL); SetHWInterface(NULL);
if (fHWInterface) { if (fHWInterface != NULL) {
fHWInterface->LockExclusiveAccess(); fHWInterface->LockExclusiveAccess();
fHWInterface->Shutdown(); fHWInterface->Shutdown();
fHWInterface->UnlockExclusiveAccess(); fHWInterface->UnlockExclusiveAccess();
@@ -56,8 +56,10 @@ BitmapDrawingEngine::SetSize(int32 newWidth, int32 newHeight)
fHWInterface = NULL; fHWInterface = NULL;
} }
fBitmap->ReleaseReference(); if (fBitmap != NULL) {
fBitmap = NULL; fBitmap->ReleaseReference();
fBitmap = NULL;
}
if (newWidth <= 0 || newHeight <= 0) if (newWidth <= 0 || newHeight <= 0)
return B_OK; return B_OK;