diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-11 16:14:02 +0200 |
|---|---|---|
| committer | Zhi Wang <zhi.a.wang@intel.com> | 2022-04-21 07:36:56 -0400 |
| commit | 2aa72ec97ce9eb092cb69efd26f5eb2469e61734 (patch) | |
| tree | f66d01ba6f0288d269e0614794f35c8d92301e87 /drivers/vfio/mdev/mdev_core.c | |
| parent | 6b42f491e17ce13f5ff7f2d1f49c73a0f4c47b20 (diff) | |
| download | linux-2aa72ec97ce9eb092cb69efd26f5eb2469e61734.tar.bz2 | |
vfio/mdev: Use the driver core to create the 'remove' file
The device creator is supposed to use the dev.groups value to add sysfs
files before device_add is called, not call sysfs_create_files() after
device_add() returns. This creates a race with uevent delivery where the
extra attribute will not be visible.
This was being done because the groups had been co-opted by the mdev
driver, now that prior patches have moved the driver's groups to the
struct device_driver the dev.group is properly free for use here.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-34-hch@lst.de
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Diffstat (limited to 'drivers/vfio/mdev/mdev_core.c')
| -rw-r--r-- | drivers/vfio/mdev/mdev_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c index 19a20ff420b7..b8b9e7911e55 100644 --- a/drivers/vfio/mdev/mdev_core.c +++ b/drivers/vfio/mdev/mdev_core.c @@ -269,6 +269,7 @@ int mdev_device_create(struct mdev_type *type, const guid_t *uuid) mdev->dev.parent = parent->dev; mdev->dev.bus = &mdev_bus_type; mdev->dev.release = mdev_device_release; + mdev->dev.groups = mdev_device_groups; mdev->type = type; /* Pairs with the put in mdev_device_release() */ kobject_get(&type->kobj); |