reiserfscore: fix "new_insert_key may be used uninitialized..."

new_insert_key only makes any sense when it's associated with a
new_insert_ptr, which is initialized to NULL and changed to a
buffer_head when we also initialize new_insert_key.  We can key off
of that to avoid the uninitialized warning.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
1 file changed