Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
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 4.9 10/14] i2c: cadence: Unregister the clk notifier in error path
Date:   Mon, 11 Jul 2022 11:06:29 +0200
Message-Id: <20220711090535.824091103@linuxfoundation.org>
In-Reply-To: <20220711090535.517697227@linuxfoundation.org>
References: <20220711090535.517697227@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

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
@@ -992,6 +992,7 @@ 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);