linux-kernel - [PATCH] i2c: designware: balance clk enable/disable on removal

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Date:	Sat, 30 Jan 2016 01:31:36 +0300
From:	Alexey Khoroshilov <khoroshilov@...ras.ru>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org,
	Alexey Khoroshilov <khoroshilov@...ras.ru>
Subject: [PATCH] i2c: designware: balance clk enable/disable on removal

It seems clk_disable_unprepare() is missed in dw_i2c_plat_remove(),
so the patch adds it.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 438f1b4964c0..8f19b7b81fe0 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -267,6 +267,7 @@ static int dw_i2c_plat_remove(struct platform_device *pdev)
 	i2c_del_adapter(&dev->adapter);
 
 	i2c_dw_disable(dev);
+	i2c_dw_plat_prepare_clk(dev, false);
 
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
-- 
1.9.1