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| author | Jean Delvare <khali@linux-fr.org> | 2008-08-10 22:56:16 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-08-10 22:56:16 +0200 |
| commit | c1159f9e8927f5732c19816a605926bc76c498b2 (patch) | |
| tree | d74732ca258661b744787d61a5402f8c8d5d9d9c | |
| parent | 8d24f8dcb7ead491704e274883b2c627062f6235 (diff) | |
| download | op-kernel-dev-c1159f9e8927f5732c19816a605926bc76c498b2.zip op-kernel-dev-c1159f9e8927f5732c19816a605926bc76c498b2.tar.gz | |
i2c: Check for address business before creating clients
We check for address business in i2c_probe_address(),
i2c_detect_address() and i2c_new_probed_device(), but this isn't
sufficient. Drivers can call i2c_attach_client() and
i2c_new_device() on any address, so we must check the address there
as well.
This fixes bug #11239:
http://bugzilla.kernel.org/show_bug.cgi?id=11239
Signed-off-by: Jean Delvare <khali@linux-fr.org>
| -rw-r--r-- | drivers/i2c/i2c-core.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index c16dcad..550853f 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -813,7 +813,12 @@ static int i2c_check_addr(struct i2c_adapter *adapter, int addr) int i2c_attach_client(struct i2c_client *client) { struct i2c_adapter *adapter = client->adapter; - int res = 0; + int res; + + /* Check for address business */ + res = i2c_check_addr(adapter, client->addr); + if (res) + return res; client->dev.parent = &client->adapter->dev; client->dev.bus = &i2c_bus_type; |
