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author | Douglas Anderson <dianders@chromium.org> | 2018-12-05 06:38:28 +0300 |
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committer | Daniel Thompson <daniel.thompson@linaro.org> | 2018-12-30 11:31:23 +0300 |
commit | 162bc7f5afd75b72acbe3c5f3488ef7e64a3fe36 (patch) | |
tree | 28a6c66c667177ad20271d85d332f0e3831b955f /kernel/padata.c | |
parent | 87b095928584da7d5cb3149016f00b0b139c2292 (diff) | |
download | linux-162bc7f5afd75b72acbe3c5f3488ef7e64a3fe36.tar.xz |
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 'kernel/padata.c')
0 files changed, 0 insertions, 0 deletions