x86: fix disassembler build after 1a3b4f90bc5f

In commit 1a3b4f90bc5f ("x86: convert two pointers to (indexing)
integers") I neglected the fact that compilers may warn about comparing
ptrdiff_t (signed long) with size_t (unsigned long) values. Since just
before we've checked that the value is positive, simply add a cast
(despite my dislike for casts).

diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 6f75abf57f340d39971cdee42d4c74ea7b78fa85..6161bf72459f71cee94117c825fecb8fff85feb3 100644 (file)
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -300,7 +300,7 @@ fetch_code (struct disassemble_info *info, const uint8_t *until)
   if (needed <= 0)
     return true;
 
-  if (priv->fetched + needed <= ARRAY_SIZE (priv->the_buffer))
+  if (priv->fetched + (size_t) needed <= ARRAY_SIZE (priv->the_buffer))
     status = (*info->read_memory_func) (start, fetch_end, needed, info);
   if (status != 0)
     {