tracing: Fix double free when function profile init failed
authorNamhyung Kim <namhyung.kim@lge.com>
Mon, 1 Apr 2013 12:46:23 +0000 (21:46 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Apr 2013 04:27:26 +0000 (21:27 -0700)
commite264d3cf890eb1ead5200731b9e3dbd1d1b71fa8
treef0ac71897029ad2ec81178e32aec9eddb24e769e
parentb43105dee8480ca5784de5c858d1cccee74ebfb1
tracing: Fix double free when function profile init failed

commit 83e03b3fe4daffdebbb42151d5410d730ae50bd1 upstream.

On the failure path, stat->start and stat->pages will refer same page.
So it'll attempt to free the same page again and get kernel panic.

Link: http://lkml.kernel.org/r/1364820385-32027-1-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
kernel/trace/ftrace.c