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(parent: c1c4920) | patch
perf intel-pt: Fix divide by zero when TSC is not available
authorAdrian Hunter <adrian.hunter@intel.com>
Fri, 1 Mar 2019 10:35:36 +0000 (12:35 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 1 Mar 2019 17:48:30 +0000 (14:48 -0300)
commit076333870c2f5bdd9b6d31e7ca1909cf0c84cbfa
tree22562c2f3c6a1cfe9bfd63c23ab1eca1052fb657tree
parentc1c49204b0114daf210c79d66a5980c8e6f8f8fbcommit | diff
perf intel-pt: Fix divide by zero when TSC is not available

When TSC is not available, "timeless" decoding is used but a divide by
zero occurs if perf_time_to_tsc() is called.

Ensure the divisor is not zero.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v4.9+
Link: https://lkml.kernel.org/n/tip-1i4j0wqoc8vlbkcizqqxpsf4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/intel-pt.c diff | blob | history
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