target/linux/bcm27xx/patches-5.15/950-0856-clk-Zero-the-clk_rate_request-structure.patch


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From a067f7842c9371cd487fef6872380937db24d9e5 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Sat, 2 Apr 2022 14:37:39 +0200
Subject: [PATCH] clk: Zero the clk_rate_request structure

In order to make sure we don't carry anything over from an already
existing clk_rate_request pointer we would pass to
clk_core_init_rate_req(), let's zero the entire structure before
initializing it.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> # imx8mp
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> # exynos4210, meson g12b
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
@@ -1438,6 +1438,8 @@ static void clk_core_init_rate_req(struc
 	if (WARN_ON(!core || !req))
 		return;
 
+	memset(req, 0, sizeof(*req));
+
 	req->rate = rate;
 	clk_core_get_boundaries(core, &req->min_rate, &req->max_rate);