tree e1ca3badfc9604199670d049e26871bd69d8932f
parent 907f27840985fe6a0c62e43cd4702c6e04b4bcc7
author Jiri Olsa <jolsa@redhat.com> 1285342862 +0200
committer Steven Rostedt <rostedt@goodmis.org> 1287413605 -0400

tracing: Add proper check for irq_depth routines

The check_irq_entry and check_irq_return could be called
from graph event context. In such case there's no graph
private data allocated. Adding checks to handle this case.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <20100924154102.GB1818@jolsa.brq.redhat.com>

[ Fixed some grammar in the comments ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>