Nikolay Sivov : dwrite: Handle QI failure (Coverity).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4a1e6227ed5ddd6446006e5ebf53feb92ca40844
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=4a1e6227ed5ddd6446006e5ebf...

Author: Nikolay Sivov 
Date:   Sat Aug 22 21:07:17 2015 +0300

dwrite: Handle QI failure (Coverity).

---

dlls/dwrite/font.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dlls/dwrite/font.c b/dlls/dwrite/font.c
index a0596ea..f86a908 100644
--- a/dlls/dwrite/font.c
+++ b/dlls/dwrite/font.c
@@ -3597,8 +3597,13 @@ static void glyphrunanalysis_render(struct dwrite_glyphrunanalysis *analysis, DW
     BOOL is_rtl, nohint;
     FLOAT origin_x;
     UINT32 i, size;
+    HRESULT hr;

-    IDWriteFontFace_QueryInterface(analysis->run.fontFace, &IID_IDWriteFontFace2, (void**)&fontface2);
+    hr = IDWriteFontFace_QueryInterface(analysis->run.fontFace, &IID_IDWriteFontFace2, (void**)&fontface2);
+    if (FAILED(hr)) {
+        WARN("failed to get IDWriteFontFace2, 0x%08x\n", hr);
+        return;
+    }

nohint = analysis->rendering_mode == DWRITE_RENDERING_MODE_NATURAL || analysis->rendering_mode == DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC;