i2c: cadence: Unregister the clk notifier in error path

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>

diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
index b4c1ad1..3d6f8ee 100644 (file)
--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -1338,6 +1338,7 @@ static int cdns_i2c_probe(struct platform_device *pdev)
        return 0;
 
 err_clk_dis:
+       clk_notifier_unregister(id->clk, &id->clk_rate_change_nb);
        clk_disable_unprepare(id->clk);
        pm_runtime_disable(&pdev->dev);
        pm_runtime_set_suspended(&pdev->dev);