diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2019-03-01 12:35:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 13:19:53 +0100 |
| commit | 5ed7a8f6f97f2890d050caca2c15b870a45cb314 (patch) | |
| tree | ee6ea797758dc1c07498327042275f518427e4e0 /drivers/md | |
| parent | 4f7c16b5ef874199d9e2acfafdb7f0ff203cc1e8 (diff) | |
perf intel-pt: Fix divide by zero when TSC is not available
commit 076333870c2f5bdd9b6d31e7ca1909cf0c84cbfa upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
0 files changed, 0 insertions, 0 deletions