From: Steven Rostedt <rostedt@goodmis.org>
Date: Thu, 23 Oct 2008 13:32:59 +0000 (-0400)
Subject: ftrace: return error on failed modified text.
X-Git-Tag: v2.6.28-rc3~86^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=593eb8a2d63e95772a5f22d746f18a997c5ee463;p=pandora-kernel.git

ftrace: return error on failed modified text.

Have the ftrace_modify_code return error values:

  -EFAULT on error of reading the address

  -EINVAL if what is read does not match what it expected

  -EPERM  if the write fails to update after a successful match.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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