linux-kernel - [PATCH 5.10 262/663] clk: meson: clk-pll: propagate the error from meson_clk_pll_set

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Date:   Mon,  1 Mar 2021 17:08:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 262/663] clk: meson: clk-pll: propagate the error from meson_clk_pll_set_rate()

From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

[ Upstream commit ccdc1f0836f8e37b558a424f1e491f929b2e7ede ]

Popagate the error code from meson_clk_pll_set_rate() when the PLL does
not lock with the new settings.

Fixes: 722825dcd54b2e ("clk: meson: migrate plls clocks to clk_regmap")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
Link: https://lore.kernel.org/r/20201226121556.975418-4-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/meson/clk-pll.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index 5b932976483fd..49f27fe532139 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -394,7 +394,8 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 	if (!enabled)
 		return 0;
 
-	if (meson_clk_pll_enable(hw)) {
+	ret = meson_clk_pll_enable(hw);
+	if (ret) {
 		pr_warn("%s: pll did not lock, trying to restore old rate %lu\n",
 			__func__, old_rate);
 		/*
@@ -406,7 +407,7 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 		meson_clk_pll_set_rate(hw, old_rate, parent_rate);
 	}
 
-	return 0;
+	return ret;
 }
 
 /*
-- 
2.27.0