nouveau/instmem: handle iomapping already existing

Turns out sashiko was right, and I should protect this properly

Fixes: 34e27b9055 ("nouveau/instmem: use iomapping interface for instmem handling")
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260825030615.3464436-1-airlied@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Dave Airlie 2026-08-25 13:06:15 +10:00 • committed by Danilo Krummrich
commit deced5fa01