[PATCH v3 3/5] vfio: platform: simplify device removal

From: Uwe Kleine-König
Date: Tue Jan 26 2021 - 19:00:59 EST


vfio_platform_remove_common() cannot return non-NULL in
vfio_amba_remove() as the latter is only called if vfio_amba_probe()
returned success.

Diagnosed-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Eric Auger <eric.auger@xxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
drivers/vfio/platform/vfio_amba.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/vfio/platform/vfio_amba.c b/drivers/vfio/platform/vfio_amba.c
index 9636a2afaecd..7b3ebf1558e1 100644
--- a/drivers/vfio/platform/vfio_amba.c
+++ b/drivers/vfio/platform/vfio_amba.c
@@ -73,16 +73,12 @@ static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id)

static int vfio_amba_remove(struct amba_device *adev)
{
- struct vfio_platform_device *vdev;
-
- vdev = vfio_platform_remove_common(&adev->dev);
- if (vdev) {
- kfree(vdev->name);
- kfree(vdev);
- return 0;
- }
+ struct vfio_platform_device *vdev =
+ vfio_platform_remove_common(&adev->dev);

- return -EINVAL;
+ kfree(vdev->name);
+ kfree(vdev);
+ return 0;
}

static const struct amba_id pl330_ids[] = {
--
2.29.2