[PATCH] vfio: platform: ignore missing reset if disabled at module init

From: Tomasz Duszynski
Date: Wed Jan 25 2023 - 11:11:39 EST


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@xxxxxxxxxxx>
Fixes: 5f6c7e0831a1 ("vfio/platform: Use the new device life cycle helpers")
---
drivers/vfio/platform/vfio_platform_common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index 1a0a238ffa35..c09ffab6fbe6 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -653,7 +653,8 @@ int vfio_platform_init_common(struct vfio_platform_device *vdev)
if (ret && vdev->reset_required)
dev_err(dev, "No reset function found for device %s\n",
vdev->name);
- return ret;
+
+ return vdev->reset_required ? ret : 0;
}
EXPORT_SYMBOL_GPL(vfio_platform_init_common);

--
2.34.1