[PATCH 3/3] dlls/gdiplus: Empty path before lengthening it in GdipWidenPath.

[David Kahurani]

From: David Kahurani

Empty the path, albeit temporarily before trying to lengthen
the path because the data contained in it is at this point,
unless an error happens, invalid. This avoids a situation where
lengthening code, assuming the data in the path is valid
proceeds to lengthen the path further.

Signed-off-by: David Kahurani 
---
 dlls/gdiplus/graphicspath.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dlls/gdiplus/graphicspath.c b/dlls/gdiplus/graphicspath.c
index ea9f1ed9aed..b40e84c07f3 100644
--- a/dlls/gdiplus/graphicspath.c
+++ b/dlls/gdiplus/graphicspath.c
@@ -2465,7 +2465,7 @@ GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
     GpPath *flat_path=NULL;
     GpStatus status;
     path_list_node_t *points=NULL, *last_point=NULL;
-    int i, subpath_start=0, new_length;
+    int i, subpath_start=0, new_length, old_count;

TRACE("(%p,%p,%s,%0.2f)\n", path, pen, debugstr_matrix(matrix), flatness);

@@ -2475,6 +2475,8 @@ GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,
     if (path->pathdata.Count <= 1)
         return OutOfMemory;

+    old_count = path->pathdata.Count;
+
     status = GdipClonePath(path, &flat_path);

if (status == Ok)
@@ -2550,8 +2552,12 @@ GpStatus WINGDIPAPI GdipWidenPath(GpPath *path, GpPen *pen, GpMatrix *matrix,

new_length = path_list_count(points)-1;

+        path->pathdata.Count = 0;
         if (!lengthen_path(path, new_length))
+        {
+            path->pathdata.Count = old_count;
             status = OutOfMemory;
+        }
     }

if (status == Ok)