This patch is from Ananth N Mavinakayanahalli <ananth@in.ibm.com>.

While processing a kprobe, we were currently not handling all available trap
variants available on PowerPC.  This lead to the breakage of BUG() handling in
ppc64.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>