| Message ID | 20240325054403.592298-2-sboyd@kernel.org |
|---|---|
| State | Accepted |
| Commit | 8358a76cfb47c9a5af627a0c4e7168aa14fa25f6 |
| Headers | show |
| Series | [1/5] clk: Remove prepare_lock hold assertion in __clk_release() | expand |
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 2253c154a824..44e71736477d 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -4353,8 +4353,6 @@ static void __clk_release(struct kref *ref) { struct clk_core *core = container_of(ref, struct clk_core, ref); - lockdep_assert_held(&prepare_lock); - clk_core_free_parent_map(core); kfree_const(core->name); kfree(core);
Removing this assertion lets us move the kref_put() call outside the prepare_lock section. We don't need to hold the prepare_lock here to free memory and destroy the clk_core structure. We've already unlinked the clk from the clk tree and by the time the release function runs nothing holds a reference to the clk_core anymore so anything with the pointer can't access the memory that's being freed anyway. Way back in commit 496eadf821c2 ("clk: Use lockdep asserts to find missing hold of prepare_lock") we didn't need to have this assertion either. Fixes: 496eadf821c2 ("clk: Use lockdep asserts to find missing hold of prepare_lock") Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Douglas Anderson <dianders@chromium.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> --- drivers/clk/clk.c | 2 -- 1 file changed, 2 deletions(-)