Steven Rostedt (VMware) 69d71879d2 ftrace: Test for NULL iter->tr in regex for stack_trace_filter changes
As writing into stack_trace_filter, the iter-tr is not set and is NULL.
Check if it is NULL before dereferencing it in ftrace_regex_release().

Fixes: 8c08f0d5c6fb ("ftrace: Have cached module filters be an active filter")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-07-05 09:52:18 -04:00
..
2017-05-19 09:21:15 -06:00
2017-05-03 18:41:21 -07:00