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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-15 14:03:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-11-15 14:03:17 -0800 |
| commit | fe9d1159b299642f9e1a9b56bbf67a24c31bb418 (patch) | |
| tree | 530c6e41beb784adb16a1faae2839edbad2fbb7f /drivers/i2c/i2c-core.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 (diff) | |
| parent | i2c: Sanity checks on adapter registration (diff) | |
| download | linux-dev-fe9d1159b299642f9e1a9b56bbf67a24c31bb418.tar.xz linux-dev-fe9d1159b299642f9e1a9b56bbf67a24c31bb418.zip | |
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c: Sanity checks on adapter registration
i2c: Mark i2c_adapter.id as deprecated
i2c: Drivers shouldn't include <linux/i2c-id.h>
i2c: Delete unused adapter IDs
i2c: Remove obsolete cleanup for clientdata
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 d231f683f576..6b4cc567645b 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); |