clk: Add locking to clk_get_rate_range

clk_get_rate_range() is missing the proper locks, making lockdep
complain.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index f3dfb6b..de6715c 100644 (file)
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2589,7 +2589,9 @@ void clk_get_rate_range(struct clk *clk, unsigned long *min, unsigned long *max)
        if (!clk || !min || !max)
                return;
 
+       clk_prepare_lock();
        clk_core_get_boundaries(clk->core, min, max);
+       clk_prepare_unlock();
 }
 EXPORT_SYMBOL_GPL(clk_get_rate_range);