From: Dinghao Liu Date: Fri, 8 Dec 2023 07:31:19 +0000 (+0800) Subject: iio: core: fix memleak in iio_device_register_sysfs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=95a0d596bbd0552a78e13ced43f2be1038883c81;p=linux.git iio: core: fix memleak in iio_device_register_sysfs When iio_device_register_sysfs_group() fails, we should free iio_dev_opaque->chan_attr_group.attrs to prevent potential memleak. Fixes: 32f171724e5c ("iio: core: rework iio device group creation") Signed-off-by: Dinghao Liu Link: https://lore.kernel.org/r/20231208073119.29283-1-dinghao.liu@zju.edu.cn Cc: Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 9a85752124ddc..173dc00762a15 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1584,10 +1584,13 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev) ret = iio_device_register_sysfs_group(indio_dev, &iio_dev_opaque->chan_attr_group); if (ret) - goto error_clear_attrs; + goto error_free_chan_attrs; return 0; +error_free_chan_attrs: + kfree(iio_dev_opaque->chan_attr_group.attrs); + iio_dev_opaque->chan_attr_group.attrs = NULL; error_clear_attrs: iio_free_chan_devattr_list(&iio_dev_opaque->channel_attr_list);