[for-next][PATCH 3/3] tracing: Check if tracing is enabled in trace_puts()

From: "Steven Rostedt (Red Hat)" If trace_puts() is used very early in boot up, it can crash the machine if it is called before the ring buffer is allocated. If a trace_printk() is used with no arguments, then it will be converted into a trace_puts() and suffer the same fate. Cc:

[for-next][PATCH 3/3] tracing: Check if tracing is enabled in trace_puts()

From: Steven Rostedt (Red Hat) rost...@goodmis.org If trace_puts() is used very early in boot up, it can crash the machine if it is called before the ring buffer is allocated. If a trace_printk() is used with no arguments, then it will be converted into a trace_puts() and suffer the same fate.