vfio: return -ENOTTY for unsupported device feature

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[ Upstream commit 16df67f218 ]

The two implementers of vfio_device_ops.device_feature,
vfio_cdx_ioctl_feature and vfio_pci_core_ioctl_feature, return
-ENOTTY in the fallthrough case when the feature is unsupported. For
consistency, the base case, vfio_ioctl_device_feature, should do the
same when device_feature == NULL, indicating an implementation has no
feature extensions.

Signed-off-by: Alex Mastro <amastro@fb.com>
Link: https://lore.kernel.org/r/20250908-vfio-enotty-v1-1-4428e1539e2e@fb.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Alex Mastro 2025-09-08 08:58:40 -07:00 • committed by Greg Kroah-Hartman

parent 3c550bbc96

commit f3d2bc112b

1 changed files with 1 additions and 1 deletions

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drivers/vfio/vfio_main.c

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