[for-next][PATCH 2/3] ftrace: Fix regression with module command in stack_trace_filter

From: "Steven Rostedt (VMware)" When doing the following command: # echo ":mod:kvm_intel" > /sys/kernel/tracing/stack_trace_filter it triggered a crash. This happened with the clean up of probes. It required all callers to the regex function (doing ftrace filtering) to

[for-next][PATCH 2/3] ftrace: Fix regression with module command in stack_trace_filter

From: "Steven Rostedt (VMware)" When doing the following command: # echo ":mod:kvm_intel" > /sys/kernel/tracing/stack_trace_filter it triggered a crash. This happened with the clean up of probes. It required all callers to the regex function (doing ftrace filtering) to have ops->private be a