[PATCH 0/2] Fix return code and improve feature check for synthetic uevents

Peter Rajnoha
2018-12-05T11:27:54Z

Two small patches to aid handling of synthetic uevents back in userspace:

- Return error code back to userspace on /sys/.../uevent file write
failure so userspace knows and it can act accordingly.

- Add new 'kernel/uevent_features' sysfs file to make it possible for
userspace to check that the extended synthetic uevent arguments are
supported without relying on kernel version check only.

Peter Rajnoha (2):
kobject: return error code if writing /sys/.../uevent fails
kobject: add kernel/uevent_features sysfs file

drivers/base/bus.c | 12 ++++++++----
drivers/base/core.c | 8 +++++++-
kernel/ksysfs.c | 8 ++++++++
kernel/module.c | 6 ++++--
4 files changed, 27 insertions(+), 7 deletions(-)

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2.19.2