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It is possible that a pid has no associated comm attached to it, although it can still be passed to pevent_register_comm(). But if comm is NULL, it will cause strdup() to segfault. To prevent this from happening, if comm is NULL use the default "<...>" name for the pid. Signed-off-by: Josef Bacik <jbacik@fb.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20150324135922.549965495@goodmis.org Link: http://lkml.kernel.org/p/1403799732-30308-1-git-send-email-jbacik@fb.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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