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| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2017-10-06 00:38:42 +0300 |
|---|---|---|
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2017-10-09 23:48:18 +0300 |
| commit | 0e005888b833ba65dcf2c7aa12958dad6b2b8618 (patch) | |
| tree | 57ff2e3bf33ff5a6fa9f938a42407ef794283bca /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 2de3813880bf16deff8223add4d7e1872c7a9e77 (diff) | |
| download | linux-0e005888b833ba65dcf2c7aa12958dad6b2b8618.tar.xz | |
drm/i915: avoid division by zero on cnl_calc_wrpll_link
If for some unexpected reason the registers all read zero it's better
to WARN and return instead of dividing by zero and completely freezing
the machine.
I don't expect this to happen in the wild with the current code, but I
accidentally triggered the division by zero while doing some debugging
in an unusual environment.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171005213842.11423-2-paulo.r.zanoni@intel.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions