Commit d93ab050f for imagemagick.org

commit d93ab050ff929e2902dc4d5a988c934d31a1b191
Author: Dirk Lemstra <dirk@lemstra.org>
Date:   Sun Mar 1 17:17:23 2026 +0100

    Simplify code.

diff --git a/coders/sixel.c b/coders/sixel.c
index b24295938..2eddc7ce8 100644
--- a/coders/sixel.c
+++ b/coders/sixel.c
@@ -815,9 +815,8 @@ static MagickBooleanType sixel_encode_impl(sixel_pixel_t *pixels,size_t width,
   context->pos = 0;
   if (ncolors < 1)
     return(MagickFalse);
-  if (HeapOverflowSanityCheck(ncolors,width) != MagickFalse)
+  if (HeapOverflowSanityCheckGetSize(ncolors,width,&len) != MagickFalse)
     return(MagickFalse);
-  len=ncolors*width;
   context->active_palette=(-1);
   map=(sixel_pixel_t *) AcquireQuantumMemory(len,sizeof(sixel_pixel_t));
   if (map == (sixel_pixel_t *) NULL)