ide: Fix off-by-one error in array index check

Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

hw/ide/core.c

@@ -2039,7 +2039,7 @@ static int ide_drive_pio_post_load(void *opaque, int version_id)
 {
     IDEState *s = opaque;
 
-    if (s->end_transfer_fn_idx > ARRAY_SIZE(transfer_end_table)) {
+    if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
         return -EINVAL;
     }
     s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];