diff options
| author | Douglas Anderson <dianders@chromium.org> | 2018-12-04 19:38:28 -0800 |
|---|---|---|
| committer | Daniel Thompson <daniel.thompson@linaro.org> | 2018-12-30 08:31:23 +0000 |
| commit | 162bc7f5afd75b72acbe3c5f3488ef7e64a3fe36 (patch) | |
| tree | 28a6c66c667177ad20271d85d332f0e3831b955f /drivers/iommu/amd_iommu_v2.c | |
| parent | 87b095928584da7d5cb3149016f00b0b139c2292 (diff) | |
| download | blackbird-obmc-linux-162bc7f5afd75b72acbe3c5f3488ef7e64a3fe36.tar.gz blackbird-obmc-linux-162bc7f5afd75b72acbe3c5f3488ef7e64a3fe36.zip | |
kdb: Don't back trace on a cpu that didn't round up
If you have a CPU that fails to round up and then run 'btc' you'll end
up crashing in kdb becaue we dereferenced NULL. Let's add a check.
It's wise to also set the task to NULL when leaving the debugger so
that if we fail to round up on a later entry into the debugger we
won't backtrace a stale task.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Diffstat (limited to 'drivers/iommu/amd_iommu_v2.c')
0 files changed, 0 insertions, 0 deletions
