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authorJean Delvare <khali@linux-fr.org>2009-10-04 22:53:46 +0200
committerJean Delvare <khali@linux-fr.org>2009-10-04 22:53:46 +0200
commit6f6b35e133fe4313277b30fc1a7ea313875ea6c9 (patch)
tree1b7aa0dde7d69b0f90b80a0398c9699faae6260e /drivers/macintosh/windfarm_lm75_sensor.c
parent18669eabde2ff5fc446e72e043f0539059763438 (diff)
macintosh: Don't assume i2c device probing always succeeds
If i2c device probing fails, then there is no driver to dereference after calling i2c_new_device(). Stop assuming that probing will always succeed, to avoid NULL pointer dereferences. We have an easier access to the driver anyway. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Tim Shepard <shep@alum.mit.edu> Cc: Colin Leroy <colin@colino.net>
Diffstat (limited to 'drivers/macintosh/windfarm_lm75_sensor.c')
-rw-r--r--drivers/macintosh/windfarm_lm75_sensor.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c
index 529886c7a826..ed6426a10773 100644
--- a/drivers/macintosh/windfarm_lm75_sensor.c
+++ b/drivers/macintosh/windfarm_lm75_sensor.c
@@ -115,6 +115,8 @@ static int wf_lm75_probe(struct i2c_client *client,
return rc;
}
+static struct i2c_driver wf_lm75_driver;
+
static struct i2c_client *wf_lm75_create(struct i2c_adapter *adapter,
u8 addr, int ds1775,
const char *loc)
@@ -157,7 +159,7 @@ static struct i2c_client *wf_lm75_create(struct i2c_adapter *adapter,
* Let i2c-core delete that device on driver removal.
* This is safe because i2c-core holds the core_lock mutex for us.
*/
- list_add_tail(&client->detected, &client->driver->clients);
+ list_add_tail(&client->detected, &wf_lm75_driver.clients);
return client;
fail:
return NULL;