ARM: hw_breakpoint: don't fault when debug is not powered

If the debug logic is not powered, the processor can unfortunately
raise an undefined instruction exception on the instruction that
we use to check if the debug logic is powered up or not.

Handle this with an undef hook, so that the kernel doesn't crash
on boot on such setups.

ST-Ericsson ID: 370131
ST-Ericsson Linux next: NA
ST-Ericsson FOSS-OUT ID: Trivial

Change-Id: I5802811ac0676d3d13782897b6941dcaee3e4721
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/35326
Reviewed-by: QABUILD
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>

0 files changed, 0 insertions, 0 deletions