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| author | Alexandru Ardelean <aardelean@deviqon.com> | 2021-04-02 20:42:26 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-04-07 10:36:38 +0300 |
| commit | ca3e7d524cc82fe198984327c49e5bc276e5a432 (patch) | |
| tree | 80b4b00565f6fb8b2c00a071bcbb3a29e6a4d920 /drivers/iio/industrialio-buffer.c | |
| parent | af3bac44b1c5f19ee02b4fb5ef957c6163934a71 (diff) | |
| download | linux-ca3e7d524cc82fe198984327c49e5bc276e5a432.tar.xz | |
iio: buffer: use sysfs_attr_init() on allocated attrs
When dynamically allocating sysfs attributes, it's a good idea to call
sysfs_attr_init() on them to initialize lock_class_keys.
This change does that.
The lock_class_keys are set when the CONFIG_DEBUG_LOCK_ALLOC symbol is
enabled. Which is [likely] one reason why I did not see this during
development.
I also am not able to see this even with CONFIG_DEBUG_LOCK_ALLOC enabled,
so this may [likely] be reproduce-able on some system configurations.
This was reported via:
https://lore.kernel.org/linux-iio/CA+U=DsrsvGgXEF30-vXuXS_k=-mjSjiBwEEzwKb1hJVn1P98OA@mail.gmail.com/T/#u
Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210402174226.630346-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 2ea52813e201..9a8e16c7e9af 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1309,6 +1309,7 @@ static struct attribute *iio_buffer_wrap_attr(struct iio_buffer *buffer, iio_attr->buffer = buffer; memcpy(&iio_attr->dev_attr, dattr, sizeof(iio_attr->dev_attr)); iio_attr->dev_attr.attr.name = kstrdup_const(attr->name, GFP_KERNEL); + sysfs_attr_init(&iio_attr->dev_attr.attr); list_add(&iio_attr->l, &buffer->buffer_attr_list); |