From ab4a0c1d1fda33a1b4d1aca694b0ea07a8771868 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Fri, 19 Oct 2018 09:59:58 +0100 Subject: [PATCH] i2c: Clear client->irq in i2c_device_remove The IRQ will be mapped in i2c_device_probe only if client->irq is zero and i2c_device_remove does not clear this. When rebinding an I2C device, whos IRQ provider has also been rebound this means that an IRQ mapping will never be created, causing the I2C device to fail to acquire its IRQ. Fix this issue by clearing client->irq in i2c_device_remove, forcing i2c_device_probe to lookup the mapping again. Signed-off-by: Charles Keepax Reviewed-by: Benjamin Tissoires Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 656f0a6fe3adf..28460f6a60cc1 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -430,6 +430,8 @@ static int i2c_device_remove(struct device *dev) dev_pm_clear_wake_irq(&client->dev); device_init_wakeup(&client->dev, false); + client->irq = 0; + return status; } -- 2.39.5