UPSTREAM: iommu/core: Check for the right function pointer in iommu_map()

Check for the ->map and not the ->unmap pointer.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
(cherry picked from commit 9db4ad9183aad0e9567f6afb23db1bdc9aa6c2a9)
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>

BUG=chrome-os-partner:37894
TEST=sanity check ui

Change-Id: I07886249ad38c2e57c4a30c13abda88f8496fc93
Reviewed-on: https://chromium-review.googlesource.com/261505
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Trybot-Ready: Douglas Anderson <dianders@chromium.org>
Commit-Queue: Daniel Kurtz <djkurtz@chromium.org>
Trybot-Ready: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Daniel Kurtz <djkurtz@chromium.org>
1 file changed