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authorTomasz Duszynski <tduszynski@marvell.com>2023-01-31 09:33:49 +0100
committerAlex Williamson <alex.williamson@redhat.com>2023-02-01 20:25:41 +0100
commit168a9c91fe0a1180959b6394f4566de7080244b6 (patch)
treebb69819c23ed815b034294ef9d3ad05788d74647 /drivers/vfio
parentvfio/mlx5: Improve the target side flow to reduce downtime (diff)
downloadlinux-168a9c91fe0a1180959b6394f4566de7080244b6.tar.xz
linux-168a9c91fe0a1180959b6394f4566de7080244b6.zip
vfio: platform: ignore missing reset if disabled at module init
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. Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com> Fixes: 5f6c7e0831a1 ("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 Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
-rw-r--r--drivers/vfio/platform/vfio_platform_common.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index 9f27e8c30c92..e53757d1d095 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -647,10 +647,13 @@ 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);