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vfio: platform: ignore missing reset if disabled at module init

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If reset requirement was relaxed via module parameter, errors caused by
missing reset should not be propagated down to the vfio core.
Otherwise initialization will fail.

Change-Id: I78957cef2b45c66eab1d949a04ccbaffe10499e7
Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Fixes: 5f6c7e0831 ("vfio/platform: Use the new device life cycle helpers")
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20230131083349.2027189-1-tduszynski@marvell.com
Git-commit: 168a9c91fe0a1180959b6394f4566de7080244b6
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Signed-off-by: Yimin Peng <quic_yiminp@quicinc.com>
This commit is contained in:
Tomasz Duszynski 2023-01-31 09:33:49 +01:00 committed by Yao Jiang
parent ef7d5d5c5c
commit db636b8ec0
1 changed files with 5 additions and 2 deletions
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7
drivers/vfio/platform/vfio_platform_common.c
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@ -650,10 +650,13 @@ int vfio_platform_init_common(struct vfio_platform_device *vdev)
mutex_init(&vdev->igate);
ret = vfio_platform_get_reset(vdev);
if (ret && vdev->reset_required)
if (ret && vdev->reset_required) {
dev_err(dev, "No reset function found for device %s\n",
vdev->name);
return ret;
return ret;
}
return 0;
}
EXPORT_SYMBOL_GPL(vfio_platform_init_common);