tree 3c0b612bf3889b07fd8b571ad5e35c9659ffb7c3
parent 08442ce993deeb15a070c14cc3f3459e87d111e0
author James Hogan <james.hogan@imgtec.com> 1377774651 +0100
committer Mike Turquette <mturquette@linaro.org> 1377892321 -0700

clk: fix new_parent dereference before null check

Commit 71472c0 (clk: add support for clock reparent on set_rate) added a
dereference of the new_parent pointer in clk_reparent(), but as detected
by smatch clk_reparent() later checks whether new_parent is NULL.

The dereference was in order to clear the new parent's new_child pointer
to avoid duplicate POST_RATE_CHANGE notifications, so clearly isn't
necessary if the new parent is NULL, so move it inside the "if
(new_parent)" block.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>