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| author | Jean Delvare <khali@linux-fr.org> | 2009-10-04 22:53:46 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-10-04 22:53:46 +0200 |
| commit | 6f6b35e133fe4313277b30fc1a7ea313875ea6c9 (patch) | |
| tree | 1b7aa0dde7d69b0f90b80a0398c9699faae6260e /drivers/macintosh/therm_pm72.c | |
| parent | 18669eabde2ff5fc446e72e043f0539059763438 (diff) | |
| download | linux-stable-6f6b35e133fe4313277b30fc1a7ea313875ea6c9.tar.gz linux-stable-6f6b35e133fe4313277b30fc1a7ea313875ea6c9.tar.bz2 linux-stable-6f6b35e133fe4313277b30fc1a7ea313875ea6c9.zip | |
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/therm_pm72.c')
| -rw-r--r-- | drivers/macintosh/therm_pm72.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index a028598af2d3..ea32c7e5a9af 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -286,6 +286,8 @@ struct fcu_fan_table fcu_fans[] = { }, }; +static struct i2c_driver therm_pm72_driver; + /* * Utility function to create an i2c_client structure and * attach it to one of u3 adapters @@ -318,7 +320,7 @@ static struct i2c_client *attach_i2c_chip(int id, const char *name) * 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(&clt->detected, &clt->driver->clients); + list_add_tail(&clt->detected, &therm_pm72_driver.clients); return clt; } |