[PATCH AUTOSEL 5.18 64/93] crypto: ccree - Add missing clk_disable_unprepare() in cc_pm_resume()

Sasha Levin
2022-08-11T16:06:53Z

From: Yuan Can <yuancan@huawei.com>

[ Upstream commit 30fb034361ff1b9bfc569b2d8d66b544ea3eb18f ]

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

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 */
--
2.35.1