tree 0d66f4d50dac7ad66997429e1f6ed702ec74afa5
parent b30a3f6257ed2105259b404d419b4964e363928c
author Borislav Petkov <borislav.petkov@amd.com> 1285497743 +0200
committer Borislav Petkov <borislav.petkov@amd.com> 1285584778 +0200

amd64_edac: Fix driver module removal

f4347553b30ec66530bfe63c84530afea3803396 removed the edac polling
mechanism in favor of using a notifier chain for conveying MCE
information to edac. However, the module removal path didn't test
whether the driver had setup the polling function workqueue at all and
the rmmod process was hanging in the kernel at try_to_del_timer_sync()
in the cancel_delayed_work() path, trying to cancel an uninitialized
work struct.

Fix that by adding a balancing check to the workqueue removal path.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>