diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-04 11:25:51 +0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-24 23:12:18 +1100 |
| commit | 5ca86eae55a2f006e6c1edd2029b2cacb6979515 (patch) | |
| tree | b3afea531615191ed4651b7f8f037d8ddc9a4a4e /drivers/macintosh | |
| parent | 3aa16303dc98b7b8baa2adbc3210fd513ec0e810 (diff) | |
| download | linux-5ca86eae55a2f006e6c1edd2029b2cacb6979515.tar.bz2 | |
macintosh: fix possible memory leak in macio_add_one_device()
Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's
bus_id string array"), the name of device is allocated dynamically. It
needs to be freed when of_device_register() fails. Call put_device() to
give up the reference that's taken in device_initialize(), so that it
can be freed in kobject_cleanup() when the refcount hits 0.
macio device is freed in macio_release_dev(), so the kfree() can be
removed.
Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221104032551.1075335-1-yangyingliang@huawei.com
Diffstat (limited to 'drivers/macintosh')
| -rw-r--r-- | drivers/macintosh/macio_asic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 1ec1e5984563..3bc1f374e657 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -424,7 +424,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, if (of_device_register(&dev->ofdev) != 0) { printk(KERN_DEBUG"macio: device registration error for %s!\n", dev_name(&dev->ofdev.dev)); - kfree(dev); + put_device(&dev->ofdev.dev); return NULL; } |