gfx: Add NULL check to silence coverity

realloc() can return NULL if size is 0. It's like free().
So, the usage here is correct, and there are probably no
points to interpolate between anyway. I wonder if there
can be commands without points, though.

Fixes CID 1293004

diff --git a/src/lib/efl/interfaces/efl_gfx_shape.c b/src/lib/efl/interfaces/efl_gfx_shape.c
index 415265f..11b38a6 100644 (file)
--- a/src/lib/efl/interfaces/efl_gfx_shape.c
+++ b/src/lib/efl/interfaces/efl_gfx_shape.c
@@ -318,7 +318,7 @@ _efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
    Efl_Gfx_Path_Command *cmds;
    Efl_Gfx_Property property_from, property_to;
    Efl_Gfx_Dash *dash = NULL;
-   double *pts, *from_pts, *to_pts;
+   double *pts;
    unsigned int i, j;
 
    from_pd = eo_data_scope_get(from, EFL_GFX_SHAPE_MIXIN);
@@ -351,18 +351,21 @@ _efl_gfx_shape_interpolate(Eo *obj, Efl_Gfx_Shape_Data *pd,
         memcpy(cmds, from_pd->commands,
                sizeof (Efl_Gfx_Path_Command) * from_pd->commands_count);
 
-        to_pts = to_pd->points;
-        from_pts = from_pd->points;
-
-        for (i = 0; cmds[i] != EFL_GFX_PATH_COMMAND_TYPE_END; i++)
-          for (j = 0; j < _efl_gfx_path_command_length(cmds[i]); j++)
-            {
-               *pts = interpolate(*from_pts, *to_pts, pos_map);
-
-               pts++;
-               from_pts++;
-               to_pts++;
-            }
+        if (pts)
+          {
+             double *to_pts = to_pd->points;
+             double *from_pts = from_pd->points;
+
+             for (i = 0; cmds[i] != EFL_GFX_PATH_COMMAND_TYPE_END; i++)
+               for (j = 0; j < _efl_gfx_path_command_length(cmds[i]); j++)
+                 {
+                    *pts = interpolate(*from_pts, *to_pts, pos_map);
+
+                    pts++;
+                    from_pts++;
+                    to_pts++;
+                 }
+          }
      }
 
    pd->points_count = from_pd->points_count;