From e693810ce8495ce3e227dacaa83f501b3b8ab204 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 13 Oct 2006 16:56:28 +0200 Subject: [PATCH 1/1] hwmon: Let w83781d and lm78 load again Let the w83781d and lm78 hardware monitoring drivers load even when no chip was detected at the ISA address. There can still be supported chips connected to an I2C bus or SMBus. This fixes bug #7293. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/lm78.c | 12 ++++++------ drivers/hwmon/w83781d.c | 12 ++++++------ drivers/i2c/busses/i2c-isa.c | 2 +- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index ac1b746df6..73bc2ffc59 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -815,18 +815,18 @@ static int __init sm_lm78_init(void) if (res) return res; - res = i2c_isa_add_driver(&lm78_isa_driver); - if (res) { - i2c_del_driver(&lm78_driver); - return res; - } + /* Don't exit if this one fails, we still want the I2C variants + to work! */ + if (i2c_isa_add_driver(&lm78_isa_driver)) + isa_address = 0; return 0; } static void __exit sm_lm78_exit(void) { - i2c_isa_del_driver(&lm78_isa_driver); + if (isa_address) + i2c_isa_del_driver(&lm78_isa_driver); i2c_del_driver(&lm78_driver); } diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index a4584ec698..fea92061f8 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -1685,11 +1685,10 @@ sensors_w83781d_init(void) if (res) return res; - res = i2c_isa_add_driver(&w83781d_isa_driver); - if (res) { - i2c_del_driver(&w83781d_driver); - return res; - } + /* Don't exit if this one fails, we still want the I2C variants + to work! */ + if (i2c_isa_add_driver(&w83781d_isa_driver)) + isa_address = 0; return 0; } @@ -1697,7 +1696,8 @@ sensors_w83781d_init(void) static void __exit sensors_w83781d_exit(void) { - i2c_isa_del_driver(&w83781d_isa_driver); + if (isa_address) + i2c_isa_del_driver(&w83781d_isa_driver); i2c_del_driver(&w83781d_driver); } diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c index 4380653748..8ed59a2dff 100644 --- a/drivers/i2c/busses/i2c-isa.c +++ b/drivers/i2c/busses/i2c-isa.c @@ -91,7 +91,7 @@ int i2c_isa_add_driver(struct i2c_driver *driver) /* Now look for clients */ res = driver->attach_adapter(&isa_adapter); if (res) { - dev_err(&isa_adapter.dev, + dev_dbg(&isa_adapter.dev, "Driver %s failed to attach adapter, unregistering\n", driver->driver.name); driver_unregister(&driver->driver); -- 2.39.2