Because "i" is unsigned then "i-- >= 0" is always true.  If we don't
find what we are looking for then we loop forever.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>