diff options
| -rw-r--r-- | drivers/i2c/i2c-core.c | 2 | ||||
| -rw-r--r-- | include/linux/i2c.h | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7ca81f42d14..79eaa12474d 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -603,7 +603,7 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num) } #endif - mutex_lock(&adap->bus_lock); + mutex_lock_nested(&adap->bus_lock, adap->level); ret = adap->algo->master_xfer(adap,msgs,num); mutex_unlock(&adap->bus_lock); diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 9b5d04768c2..08df4169b41 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -216,6 +216,7 @@ struct i2c_adapter { int (*client_unregister)(struct i2c_client *); /* data fields that are valid for all devices */ + u8 level; /* nesting level for lockdep */ struct mutex bus_lock; struct mutex clist_lock; |