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iommu: apple: Mark device with DM_FLAG_VITAL

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Avoids NULL pointer dereferences in apple_dart_unmap when the iommu
device is removed before its user. U-boot's device model does not track
dependencies between devices.
Observed on a M1 Ultra Mac Studio with v2024.10.

Acked-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Janne Grunau <j@jannau.net>
This commit is contained in:
Janne Grunau 2024-11-23 22:44:04 +01:00 • committed by Tom Rini
parent cca05617a8
commit 544a76bac3
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/apple_dart.c
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@ -322,5 +322,5 @@ U_BOOT_DRIVER(apple_dart) = {
.ops = &apple_dart_ops,
.probe = apple_dart_probe,
.remove = apple_dart_remove,
.flags = DM_FLAG_OS_PREPARE
.flags = DM_FLAG_OS_PREPARE | DM_FLAG_VITAL
};