Use static_cast to cast pointers returned by malloc/calloc/realloc/mmap.

static_cast is preferable to reinterpret_cast when casting from void*
pointers returned by malloc/calloc/realloc/mmap calls.

Discovered while looking at compiler warnings (b/26936282).

Test: WITH_TIDY=1 WITH_STATIC_ANALYZER=1 mma
Change-Id: Iaffd537784aa857108f6981fdfd82d0496eb5592
Merged-In: I151642d5a60c94f312d0611576ad0143c249ba3d
diff --git a/minui/graphics_adf.cpp b/minui/graphics_adf.cpp
index 3c35410..9e262b0 100644
--- a/minui/graphics_adf.cpp
+++ b/minui/graphics_adf.cpp
@@ -68,9 +68,9 @@
     surf->base.row_bytes = surf->pitch;
     surf->base.pixel_bytes = (pdata->format == DRM_FORMAT_RGB565) ? 2 : 4;
 
-    surf->base.data = reinterpret_cast<uint8_t*>(mmap(NULL,
-                                                      surf->pitch * surf->base.height, PROT_WRITE,
-                                                      MAP_SHARED, surf->fd, surf->offset));
+    surf->base.data = static_cast<uint8_t*>(mmap(NULL,
+                                                 surf->pitch * surf->base.height, PROT_WRITE,
+                                                 MAP_SHARED, surf->fd, surf->offset));
     if (surf->base.data == MAP_FAILED) {
         close(surf->fd);
         return -errno;
@@ -259,7 +259,7 @@
 
 minui_backend *open_adf()
 {
-    adf_pdata* pdata = reinterpret_cast<adf_pdata*>(calloc(1, sizeof(*pdata)));
+    adf_pdata* pdata = static_cast<adf_pdata*>(calloc(1, sizeof(*pdata)));
     if (!pdata) {
         perror("allocating adf backend failed");
         return NULL;