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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-22 08:47:43 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-22 08:47:43 +0000 |
| commit | 4ab0fbd3a29067e1540f05093ae4ed07645d18c8 (patch) | |
| tree | 7f027e92e4578e293b20ac1f2c389600a795ea7f /drivers/i2c/i2c-core.c | |
| parent | f3c91c1deaf8493526d8216be94c33e963f00962 (diff) | |
| parent | 3561d43fd289f590fdae672e5eb831b8d5cf0bf6 (diff) | |
Merge remote branch 'linus' into drm-intel-fixes
Diffstat (limited to 'drivers/i2c/i2c-core.c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index d231f683f57..6b4cc567645 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -848,6 +848,18 @@ static int i2c_register_adapter(struct i2c_adapter *adap) goto out_list; } + /* Sanity checks */ + if (unlikely(adap->name[0] == '\0')) { + pr_err("i2c-core: Attempt to register an adapter with " + "no name!\n"); + return -EINVAL; + } + if (unlikely(!adap->algo)) { + pr_err("i2c-core: Attempt to register adapter '%s' with " + "no algo!\n", adap->name); + return -EINVAL; + } + rt_mutex_init(&adap->bus_lock); mutex_init(&adap->userspace_clients_lock); INIT_LIST_HEAD(&adap->userspace_clients); |