commit 23138ead270045f1b3e912e667967b6094244999
author Richard Guy Briggs <rgb@redhat.com> Wed Feb 21 04:30:07 2018 -0500
committer Paul Moore <paul@paul-moore.com> Wed Feb 21 18:45:36 2018 -0500
tree 0852108566b274e74e378c01a550f21845f4f099
parent 94d14e3e7b41d99f0d62a41fd856183057e1e474

audit: return on memory error to avoid null pointer dereference

If there is a memory allocation error when trying to change an audit
kernel feature value, the ignored allocation error will trigger a NULL
pointer dereference oops on subsequent use of that pointer.  Return
instead.

Passes audit-testsuite.
See: https://github.com/linux-audit/audit-kernel/issues/76

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: not necessary (other funcs check for NULL), but a good practice]
Signed-off-by: Paul Moore <paul@paul-moore.com>