openwrt/target/linux/bcm27xx/patches-5.15/950-0896-clk-Add-locking-to-clk_get_rate_range.patch

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From 68587d886984bbae2e7ea6f419d5feabcd24a53e Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Fri, 6 May 2022 12:24:31 +0200
Subject: [PATCH] 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>
---
drivers/clk/clk.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2692,7 +2692,9 @@ void clk_get_rate_range(struct clk *clk,
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);