[PATCH v4 04/24] i2c: designware: Fix lock probe call order in dw_i2c_plat_probe()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



We should not mix managed calls with non-managed. This will break
the calls order at the error path and ->remove() stages. Fix this
by wrapping lock probe to become managed one.

Fixes: 78d5e9e299e3 ("i2c: designware: Add AMD PSP I2C bus support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 24 ++++++++++-----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 648fb84e574d..63cc3cdca2c7 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -243,6 +243,17 @@ static const struct i2c_dw_semaphore_callbacks i2c_dw_semaphore_cb_table[] = {
 	{}
 };
 
+static void i2c_dw_remove_lock_support(void *data)
+{
+	struct dw_i2c_dev *dev = data;
+
+	if (dev->semaphore_idx < 0)
+		return;
+
+	if (i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove)
+		i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev);
+}
+
 static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev)
 {
 	const struct i2c_dw_semaphore_callbacks *ptr;
@@ -273,16 +284,7 @@ static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev)
 		break;
 	}
 
-	return 0;
-}
-
-static void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev)
-{
-	if (dev->semaphore_idx < 0)
-		return;
-
-	if (i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove)
-		i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev);
+	return devm_add_action_or_reset(dev->dev, i2c_dw_remove_lock_support, dev);
 }
 
 static void dw_i2c_plat_assert_reset(void *data)
@@ -428,8 +430,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev)
 
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
-
-	i2c_dw_remove_lock_support(dev);
 }
 
 static int dw_i2c_plat_prepare(struct device *dev)
-- 
2.43.0.rc1.1.gbec44491f096





[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux