Fix klocwork critical in bootstub

BZ: 163012

Patch handles issue from klocwork build 87 using daily
20140106_2803
Issue number 87939: pointer bp checked for NULL at line
97 may be dereferenced at line 131.

Change-Id: I01d53bfe28948167f7cc68f558cfb0c5639c7100
Signed-off-by: Michel Jauffres <[email protected]>
1 file changed