Blackfin arch: fix bug - jump_to_zero test case failed on noMPU kernel

The nompu code is now derived from the mpu code, and had the same problem -
no null pointer detection on ICPLBs.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 0e28f7595733..d6c067782e63 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -53,9 +53,13 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
 
         i_d = i_i = 0;
 
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
         /* Set up the zero page.  */
         d_tbl[i_d].addr = 0;
         d_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+        i_tbl[i_i].addr = 0;
+        i_tbl[i_i++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+#endif
 
         /* Cover kernel memory with 4M pages.  */
         addr = 0;