Put is called more than once, thus hlist_del ends up on a poisoned
list.

Move hlist_del to the __clk_release handler managed by kref instead
of calling it in _clk_put.

Fixes: 1c8e600440c7 ("clk: Add rate constraints to clocks")
Signed-off-by: Alban Browaeys <pra...@yahoo.com>
---
 drivers/clk/clk.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 8f33722..f1d4b33 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2489,6 +2489,9 @@ static void __clk_release(struct kref *ref)
        struct clk *clk = container_of(&core, struct clk, core);
        int i = core->num_parents;
 
+       hlist_del(&clk->child_node);
+       clk_core_set_rate_nolock(clk->core, clk->core->req_rate);
+
        kfree(core->parents);
        while (--i >= 0)
                kfree_const(core->parent_names[i]);
@@ -2666,8 +2669,6 @@ void __clk_put(struct clk *clk)
 
        clk_prepare_lock();
 
-       hlist_del(&clk->child_node);
-       clk_core_set_rate_nolock(clk->core, clk->core->req_rate);
        owner = clk->core->owner;
        kref_put(&clk->core->ref, __clk_release);
 
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to