s390/pai: Prevent invalid event number for pai_crypto PMU

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The pai_crypto PMU has to check the event number. It has to be in
the supported range. This is not the case, the lower limit is not
checked. Fix this and obey the lower limit.

Fixes: 39d62336f5 ("s390/pai: add support for cryptography counters")

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Suggested-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Thomas Richter 2022-06-14 12:40:46 +02:00 • committed by Alexander Gordeev

parent be857b7f77

commit 541a496644

1 changed files with 3 additions and 2 deletions

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arch/s390/kernel/perf_pai_crypto.c

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