GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-03-16 12:14:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

iio: fix memory leak in iio_device_register_eventset()

Browse source 
When iio_device_register_sysfs_group() returns failed,
iio_device_register_eventset() needs to free attrs array.

Otherwise, kmemleak would scan & report memory leak as below:

unreferenced object 0xffff88810a1cc3c0 (size 32):
  comm "100-i2c-vcnl302", pid 728, jiffies 4295052307 (age 156.027s)
  backtrace:
    __kmalloc+0x46/0x1b0
    iio_device_register_eventset at drivers/iio/industrialio-event.c:541
    __iio_device_register at drivers/iio/industrialio-core.c:1959
    __devm_iio_device_register at drivers/iio/industrialio-core.c:2040

Fixes: 32f171724e ("iio: core: rework iio device group creation")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Link: https://lore.kernel.org/r/20221115023712.3726854-1-zengheng4@huawei.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Zeng Heng 2022-11-15 10:37:12 +08:00 • committed by Jonathan Cameron
parent 398e347987
commit 86fdd15e10
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/iio/industrialio-event.c
View file

@ -556,7 +556,7 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
ret = iio_device_register_sysfs_group(indio_dev, &ev_int->group);
if (ret)
goto error_free_setup_event_lines;
goto error_free_group_attrs;
ev_int->ioctl_handler.ioctl = iio_event_ioctl;
iio_device_ioctl_handler_register(&iio_dev_opaque->indio_dev,
@ -564,6 +564,8 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
return 0;
error_free_group_attrs:
kfree(ev_int->group.attrs);
error_free_setup_event_lines:
iio_free_chan_devattr_list(&ev_int->dev_attr_list);
kfree(ev_int);