fix integer overflow in line_atlas

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mbgl/geometry/line_atlas.cpp b/src/mbgl/geometry/line_atlas.cpp
index 42d2380777..a0bdbc0e57 100644
--- a/src/mbgl/geometry/line_atlas.cpp
+++ b/src/mbgl/geometry/line_atlas.cpp
@@ -14,7 +14,7 @@ using namespace mbgl;
 LineAtlas::LineAtlas(uint16_t w, uint16_t h)
     : width(w),
       height(h),
-      data(new char[w * h]),
+      data(new uint8_t[w * h]),
       dirty(true) {
 }
 
diff --git a/src/mbgl/geometry/line_atlas.hpp b/src/mbgl/geometry/line_atlas.hpp
index 3683272f98..1ce6f901fc 100644
--- a/src/mbgl/geometry/line_atlas.hpp
+++ b/src/mbgl/geometry/line_atlas.hpp
@@ -34,7 +34,7 @@ public:
 
 private:
     std::recursive_mutex mtx;
-    char *const data = nullptr;
+    uint8_t *const data = nullptr;
     std::atomic<bool> dirty;
     uint32_t texture = 0;
     int nextRow = 0;