x86: Fix off-by-one error in do_elf_reloc_fixups()

The use of post-increment with a do-while loop results in
the loop going one step too far when handling relocation fixups.

In about 1/100 cases this would cause it to hang.

Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index 200baab..c0b9b29 100644 (file)
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -85,7 +85,7 @@ int do_elf_reloc_fixups(void)
                                *offset_ptr_ram += gd->reloc_off;
                        }
                }
-       } while (re_src++ < re_end);
+       } while (++re_src < re_end);
 
        return 0;
 }