clk: Add some more lockdep assertions (a6334725) · Commits · 戴 / test

We don't check to make sure the enable_lock is held across enable/disable and we don't check if the prepare_lock is held across prepare/unprepare. Add some asserts to catch any future locking problems. Signed-off-by:

Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/clk.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -543,6 +543,8 @@ EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest);

		static void clk_core_unprepare(struct clk_core *core)
		{
		lockdep_assert_held(&prepare_lock);

		if (!core)
		return;

		@@ -589,6 +591,8 @@ static int clk_core_prepare(struct clk_core *core)
		{
		int ret = 0;

		lockdep_assert_held(&prepare_lock);

		if (!core)
		return 0;

		@@ -644,6 +648,8 @@ EXPORT_SYMBOL_GPL(clk_prepare);

		static void clk_core_disable(struct clk_core *core)
		{
		lockdep_assert_held(&enable_lock);

		if (!core)
		return;

		@@ -692,6 +698,8 @@ static int clk_core_enable(struct clk_core *core)
		{
		int ret = 0;

		lockdep_assert_held(&enable_lock);

		if (!core)
		return 0;

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