trace-cmd: Always initialize write_record() len

write_record() uses an uninitializedd 'len' when record->size is 0.  I'm
not sure how likely this case is.

To be safe and silence compiler warning, unconditionally initialize len.

Link: http://lore.kernel.org/linux-trace-devel/20190627152502.174918-1-gthelen@google.com

Fixes: 87d2a344a ("trace-cmd: Add split feature")
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed