linux-kernel - [PATCH -next] crypto: ccree: Add missing clk_disable_unprepare() in cc_pm

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Message-ID: <20220704130145.103520-1-yuancan@huawei.com>
Date:   Mon, 4 Jul 2022 13:01:45 +0000
From:   Yuan Can <yuancan@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <linux-crypto@...r.kernel.org>, <davem@...emloft.net>,
        <herbert@...dor.apana.org.au>, <gilad@...yossef.com>,
        <yuancan@...wei.com>
Subject: [PATCH -next] crypto: ccree: Add missing clk_disable_unprepare() in cc_pm_resume()

Add clk_disable_unprepare() on error path in cc_pm_resume().

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yuan Can <yuancan@...wei.com>
---
 drivers/crypto/ccree/cc_pm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c
index d5421b0c6831..6124fbbbed94 100644
--- a/drivers/crypto/ccree/cc_pm.c
+++ b/drivers/crypto/ccree/cc_pm.c
@@ -41,6 +41,7 @@ static int cc_pm_resume(struct device *dev)
 	/* wait for Cryptocell reset completion */
 	if (!cc_wait_for_reset_completion(drvdata)) {
 		dev_err(dev, "Cryptocell reset not completed");
+		clk_disable_unprepare(drvdata->clk);
 		return -EBUSY;
 	}
 
@@ -48,6 +49,7 @@ static int cc_pm_resume(struct device *dev)
 	rc = init_cc_regs(drvdata);
 	if (rc) {
 		dev_err(dev, "init_cc_regs (%x)\n", rc);
+		clk_disable_unprepare(drvdata->clk);
 		return rc;
 	}
 	/* check if tee fips error occurred during power down */
-- 
2.17.1