On Wed, Oct 02, 2013 at 10:42:27AM +0200, Geert Uytterhoeven wrote: > When calling locate_hole() with "hole_size" equal to the size of an > available memory block, it fails to use that memory block. > > "end" and "hole_max" point to the last byte within the range, hence > - "size = end - start" is one less than "hole_size", > - "hole_base + hole_size" is one more than "hole_max". > > Subtract one from "hole_size" when doing the comparison (adding 1 to "size" > could overflow in case of one big range covering the whole address space). > But explicitly check if "hole_size" is zero first, to handle this case > without causing underflows. > > Signed-off-by: Geert Uytterhoeven <geert at linux-m68k.org> Thanks, applied.
