Fix uninitialized nresults in GetRGB

core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp

Index: core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp
index b661bbefbaaca8087171a365a20e1b22a4c6410d..408a55301e3902c288a3720d36c88db339111e29 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_colors.cpp
@@ -945,7 +945,7 @@ FX_BOOL CPDF_SeparationCS::GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_F
         return TRUE;
     }
     CFX_FixedBufGrow<FX_FLOAT, 16> results(m_pFunc->CountOutputs());
-    int nresults;
+    int nresults = 0;
     m_pFunc->Call(pBuf, 1, results, nresults);
     if (nresults == 0) {
         return FALSE;