From: Steven Rostedt <srostedt@redhat.com>
Date: Tue, 10 Feb 2009 18:07:13 +0000 (-0500)
Subject: tracing, x86: fix fixup section to return to original code
X-Git-Tag: v2.6.29-rc5~35^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3944bfac961cd7fc82f3b3143c55dc375748569;p=pandora-kernel.git

tracing, x86: fix fixup section to return to original code

Impact: fix to prevent a kernel crash on fault

If for some reason the pointer to the parent function on the
stack takes a fault, the fix up code will not return back to
the original faulting code. This can lead to unpredictable
results and perhaps even a kernel panic.

A fault should not happen, but if it does, we should simply
disable the tracer, warn, and continue running the kernel.
It should not lead to a kernel crash.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
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