clover: Catch errors from executing event action

Abort all dependent events.
v2: Abort the current event as well.

CC: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
(cherry picked from commit 866b25fd)