From 8e2803ffd64cc181917f911fe0b657421ee78d9c Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Mon, 31 Jul 2017 09:38:52 -0400 Subject: [PATCH] media: cx231xx: only unregister successfully registered i2c adapters This prevents potentially scary debug messages from the i2c core. Signed-off-by: Peter Rosin Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/cx231xx/cx231xx-core.c | 3 +++ drivers/media/usb/cx231xx/cx231xx-i2c.c | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index 46646ecd2dbc..f372ad3917a8 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -1311,6 +1311,7 @@ int cx231xx_dev_init(struct cx231xx *dev) dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */ dev->i2c_bus[0].i2c_nostop = 0; dev->i2c_bus[0].i2c_reserve = 0; + dev->i2c_bus[0].i2c_rc = -ENODEV; /* External Master 2 Bus */ dev->i2c_bus[1].nr = 1; @@ -1318,6 +1319,7 @@ int cx231xx_dev_init(struct cx231xx *dev) dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */ dev->i2c_bus[1].i2c_nostop = 0; dev->i2c_bus[1].i2c_reserve = 0; + dev->i2c_bus[1].i2c_rc = -ENODEV; /* Internal Master 3 Bus */ dev->i2c_bus[2].nr = 2; @@ -1325,6 +1327,7 @@ int cx231xx_dev_init(struct cx231xx *dev) dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */ dev->i2c_bus[2].i2c_nostop = 0; dev->i2c_bus[2].i2c_reserve = 0; + dev->i2c_bus[2].i2c_rc = -ENODEV; /* register I2C buses */ errCode = cx231xx_i2c_register(&dev->i2c_bus[0]); diff --git a/drivers/media/usb/cx231xx/cx231xx-i2c.c b/drivers/media/usb/cx231xx/cx231xx-i2c.c index 3e49517cb5e0..8ce6b815d16d 100644 --- a/drivers/media/usb/cx231xx/cx231xx-i2c.c +++ b/drivers/media/usb/cx231xx/cx231xx-i2c.c @@ -553,7 +553,8 @@ int cx231xx_i2c_register(struct cx231xx_i2c *bus) */ void cx231xx_i2c_unregister(struct cx231xx_i2c *bus) { - i2c_del_adapter(&bus->i2c_adap); + if (!bus->i2c_rc) + i2c_del_adapter(&bus->i2c_adap); } /* -- 2.45.2