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authorArnaldo Carvalho de Melo <acme@redhat.com>2021-05-19 13:50:31 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-05-21 07:47:56 -0300
commit3b2f17ad1770e51b8b4e68b5069c4f1ee477eff8 (patch)
treee69f72cb5ededab886aa7e1db09f8a184a7c4818 /drivers/nvdimm
parentfb6c79d7261afb7e942251254ea47951c2a9a706 (diff)
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perf parse-events: Check if the software events array slots are populated
To avoid a NULL pointer dereference when the kernel supports the new feature but the tooling still hasn't an entry for it. This happened with the recently added PERF_COUNT_SW_CGROUP_SWITCHES software event. Reported-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Link: https://lore.kernel.org/linux-perf-users/YKVESEKRjKtILhog@kernel.org/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/nvdimm')
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