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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Satish Nagireddy <satish.nagireddy@getcruise.com>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Michal Simek <michal.simek@amd.com>,
        Wolfram Sang <wsa@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 13/17] i2c: cadence: Unregister the clk notifier in error path
Date:   Mon, 11 Jul 2022 11:06:38 +0200
Message-Id: <20220711090536.658096693@linuxfoundation.org>
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References: <20220711090536.245939953@linuxfoundation.org>
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From: Satish Nagireddy <satish.nagireddy@getcruise.com>

[ Upstream commit 3501f0c663063513ad604fb1b3f06af637d3396d ]

This patch ensures that the clock notifier is unregistered
when driver probe is returning error.

Fixes: df8eb5691c48 ("i2c: Add driver for Cadence I2C controller")
Signed-off-by: Satish Nagireddy <satish.nagireddy@getcruise.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-cadence.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -990,6 +990,7 @@ static int cdns_i2c_probe(struct platfor
 	return 0;
 
 err_clk_dis:
+	clk_notifier_unregister(id->clk, &id->clk_rate_change_nb);
 	clk_disable_unprepare(id->clk);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);