[PATCH 2/5] clk: Don't hold prepare_lock when calling kref_put()

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We don't need to hold the prepare_lock when dropping a ref on a struct
clk_core. The release function is only freeing memory and any code with
a pointer reference has already unlinked anything pointing to the
clk_core. This reduces the holding area of the prepare_lock a bit.

Note that we also don't call free_clk() with the prepare_lock held.
There isn't any reason to do that.

Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
 drivers/clk/clk.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 44e71736477d..9fc522c26de8 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -4448,7 +4448,8 @@ void clk_unregister(struct clk *clk)
 	if (ops == &clk_nodrv_ops) {
 		pr_err("%s: unregistered clock: %s\n", __func__,
-		goto unlock;
+		clk_prepare_unlock();
+		return;
 	 * Assign empty clock ops for consumers that might still hold
@@ -4482,11 +4483,10 @@ void clk_unregister(struct clk *clk)
 	if (clk->core->protect_count)
 		pr_warn("%s: unregistering protected clock: %s\n",
 					__func__, clk->core->name);
+	clk_prepare_unlock();
 	kref_put(&clk->core->ref, __clk_release);
-	clk_prepare_unlock();
@@ -4645,13 +4645,11 @@ void __clk_put(struct clk *clk)
 	if (clk->min_rate > 0 || clk->max_rate < ULONG_MAX)
 		clk_set_rate_range_nolock(clk, 0, ULONG_MAX);
-	owner = clk->core->owner;
-	kref_put(&clk->core->ref, __clk_release);
+	owner = clk->core->owner;
+	kref_put(&clk->core->ref, __clk_release);

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