tree f0802db39246d371908a43dc992823feb82fecd8
parent 2bb2e1db906e6e139636271d2cf46466d9e84005
author Carl Love <cel@us.ibm.com> 1218439543 +1000
committer Paul Mackerras <paulus@samba.org> 1219710286 +1000

powerpc/cell/oprofile: Avoid double vfree of profile buffer

If an error occurs on opcontrol start, the event and per cpu buffers
are released.  If later opcontrol shutdown is called then the free
function will be called again to free buffers that no longer
exist.  This results in a kernel oops.  The following changes
prevent the call to delete buffers that don't exist.

Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>