fb_mxcfb: Don't wraparound update markers until UINT32_MAX

On the off-chance some wonky kernels out there have a special aversion to discontinuous markers...
koreader · Oct 27, 2022 · 21f4b97 · 21f4b97
1 parent 3ba5c6b
commit 21f4b97
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/ffi/framebuffer_mxcfb.lua b/ffi/framebuffer_mxcfb.lua
@@ -56,10 +56,10 @@ local framebuffer = {
 
 --[[ refresh list management: --]]
 
--- Returns an incrementing marker value, w/ a sane wraparound.
+-- Returns an incrementing marker value, w/ a sane wraparound for an uint32_t.
 function framebuffer:_get_next_marker()
     local marker = self.marker + 1
-    if marker > 128 then
+    if marker > 0xFFFFFFFF then
         marker = 1
     end