[PATCH 5.15.y] i2c: davinci: Unregister cpufreq notifier on probe failure

[Sasha Levin <sashal@kernel.org>]

From: Haoxiang Li <haoxiang_li2024@163.com>

[ Upstream commit e43f32816a1b1fe5a86279411626fe3a9be56d45 ]

davinci_i2c_probe() registers a cpufreq transition notifier before adding
the I2C adapter.  If i2c_add_numbered_adapter() fails, the probe error path
releases the device resources without unregistering the notifier.

Add a dedicated error path to unregister the cpufreq notifier after
i2c_add_numbered_adapter() fails.

Fixes: 82c0de11b734 ("i2c: davinci: Add cpufreq support")
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Cc: <stable@vger.kernel.org> # v2.6.36+
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260610030513.2651018-1-haoxiang_li2024@163.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-davinci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index e9d07323c6049d..56447ba98e781c 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -874,13 +874,15 @@ static int davinci_i2c_probe(struct platform_device *pdev)
 	adap->nr = pdev->id;
 	r = i2c_add_numbered_adapter(adap);
 	if (r)
-		goto err_unuse_clocks;
+		goto err_cpufreq;
 
 	pm_runtime_mark_last_busy(dev->dev);
 	pm_runtime_put_autosuspend(dev->dev);
 
 	return 0;
 
+err_cpufreq:
+	i2c_davinci_cpufreq_deregister(dev);
 err_unuse_clocks:
 	pm_runtime_dont_use_autosuspend(dev->dev);
 	pm_runtime_put_sync(dev->dev);
-- 
2.53.0