From 71637c620a826434ca6f888b0364a036faa27ffa Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Thu, 26 Nov 2020 08:23:30 +0100 Subject: i2c: Warn when device removing fails The driver core ignores the return value of struct bus_type::remove. So warn if there is an error that went unnoticed before and return 0 unconditionally in i2c_device_remove(). This prepares changing struct bus_type::remove to return void. Signed-off-by: Uwe Kleine-König [wsa: added a comment and removed unneeded initializtion] Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-base.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers/i2c') diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 573b5da145d1..6528d9e8f3ae 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -551,15 +551,19 @@ static int i2c_device_remove(struct device *dev) { struct i2c_client *client = i2c_verify_client(dev); struct i2c_driver *driver; - int status = 0; if (!client || !dev->driver) return 0; driver = to_i2c_driver(dev->driver); if (driver->remove) { + int status; + dev_dbg(dev, "remove\n"); + status = driver->remove(client); + if (status) + dev_warn(dev, "remove failed (%pe), will be ignored\n", ERR_PTR(status)); } dev_pm_domain_detach(&client->dev, true); @@ -571,7 +575,8 @@ static int i2c_device_remove(struct device *dev) if (client->flags & I2C_CLIENT_HOST_NOTIFY) pm_runtime_put(&client->adapter->dev); - return status; + /* return always 0 because there is WIP to make remove-functions void */ + return 0; } static void i2c_device_shutdown(struct device *dev) -- cgit v1.2.3