Steven Rostedt (Red Hat) f74bb7400b tracing: Check if tracing is enabled in trace_puts() ...

commit 3132e107d608f8753240d82d61303c500fd515b4 upstream.

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.

Fixes: 09ae72348e "tracing: Add trace_puts() for even faster trace_printk() tracing"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-02-13 13:47:59 -08:00

..

blktrace.c

Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block

2013-05-08 11:51:05 -07:00

ftrace.c

ftrace: Initialize the ftrace profiler for each possible cpu

2014-01-09 12:24:20 -08:00

Kconfig

ring-buffer: Select IRQ_WORK

2013-05-03 19:24:17 -04:00

Makefile

…

power-traces.c

…

ring_buffer_benchmark.c

…

ring_buffer.c

ring-buffer: Do not poll non allocated cpu buffers

2013-05-28 10:53:20 -04:00

rpm-traces.c

…

trace_branch.c

…

trace_clock.c

…

trace_entries.h

…

trace_event_perf.c

perf/ftrace: Fix paranoid level for enabling function tracer

2013-11-29 11:11:43 -08:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Change event_filter_read/write to verify i_private != NULL

2013-08-29 09:47:33 -07:00

trace_events.c

tracing: trace_remove_event_call() should fail if call/file is in use

2013-08-29 09:47:34 -07:00

trace_export.c

…

trace_functions_graph.c

…

trace_functions.c

…

trace_irqsoff.c

tracing: Use flag buffer_disabled for irqsoff tracer

2013-08-14 22:59:07 -07:00

trace_kdb.c

…

trace_kprobe.c

tracing/kprobes: Fail to unregister if probe event files are in use

2013-08-29 09:47:34 -07:00

trace_mmiotrace.c

…

trace_nop.c

…

trace_output.c

…

trace_output.h

…

trace_printk.c

…

trace_probe.c

…

trace_probe.h

…

trace_sched_switch.c

…

trace_sched_wakeup.c

…

trace_selftest_dynamic.c

…

trace_selftest.c

tracing: Fix bad parameter passed in branch selftest

2013-05-29 16:00:03 -04:00

trace_stack.c

…

trace_stat.c

…

trace_stat.h

…

trace_syscalls.c

tracing: Fix irqs-off tag display in syscall tracing

2013-07-25 14:07:43 -07:00

trace_uprobe.c

tracing/uprobes: Fail to unregister if probe event files are in use

2013-08-29 09:47:34 -07:00

trace.c

tracing: Check if tracing is enabled in trace_puts()

2014-02-13 13:47:59 -08:00

trace.h

tracing: Add trace_array_get/put() to event handling

2013-07-25 14:07:43 -07:00