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| author | Hendrik Brueckner <brueckner@linux.ibm.com> | 2018-05-03 16:56:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-22 19:53:59 +0300 |
| commit | 56130d9322326202d66d9ab4c148aa8b5f7abb50 (patch) | |
| tree | 23a512f415b3b043dad05b2d81b94b98cb98af79 /Makefile | |
| parent | c568bdf37b6ecf37aa5823f8845c3ecf07f19ab3 (diff) | |
| download | linux-56130d9322326202d66d9ab4c148aa8b5f7abb50.tar.xz | |
s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
commit 4bbaf2584b86b0772413edeac22ff448f36351b1 upstream.
Correct a trinity finding for the perf_event_open() system call with
a perf event attribute structure that uses a frequency but has the
sampling frequency set to zero. This causes a FP divide exception during
the sample rate initialization for the hardware sampling facility.
Fixes: 8c069ff4bd606 ("s390/perf: add support for the CPU-Measurement Sampling Facility")
Cc: stable@vger.kernel.org # 3.14+
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions