tree 5a13c0f1f20a112efe36a73d0295e53974027f6c
parent 090f9dd092c6c2e9e4b9d0472b8d8628e4b851cb
author Jonathan Lemon <jonathan.lemon@gmail.com> 1652823960 -0700
committer Jakub Kicinski <kuba@kernel.org> 1652935477 -0700

ptp: ocp: change sysfs attr group handling

In the detach path, the driver calls sysfs_remove_group() for the
groups it believes has been registered.  However, if the group was
never previously registered, then this causes a splat.

Instead, compute the groups that should be registered in advance,
and then call sysfs_create_groups(), which registers them all at once.

Update the error handling appropriately.

Fixes: c205d53c4923 ("ptp: ocp: Add firmware capability bits for feature gating")
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Link: https://lore.kernel.org/r/20220517214600.10606-1-jonathan.lemon@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>