netfilter: qtaguid: fix bad-arg handling when tagging socket

When processing args passed to the procfs ctrl, if the tag was
invalid it would exit without releasing the spin_lock...
Bye bye scheduling.

Signed-off-by: JP Abgrall <jpa@google.com>
Change-Id: Ic1480ae9d37bba687586094cf6d0274db9c5b28a
1 file changed