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| author | Anthony Yznaga <anthony.yznaga@oracle.com> | 2021-08-23 18:35:50 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-08-24 20:09:50 +0200 |
| commit | ffc95d1b8edb80d2dab77f2e8a823c8d93b06419 (patch) | |
| tree | 295f50bada973e2c80d801401e6336d101e2f796 /drivers/vfio | |
| parent | vfio: Remove struct vfio_device_ops open/release (diff) | |
| download | linux-ffc95d1b8edb80d2dab77f2e8a823c8d93b06419.tar.xz linux-ffc95d1b8edb80d2dab77f2e8a823c8d93b06419.zip | |
vfio/type1: Fix vfio_find_dma_valid return
vfio_find_dma_valid is defined to return WAITED on success if it was
necessary to wait. However, the loop forgets the WAITED value returned
by vfio_wait() and returns 0 in a later iteration. Fix it.
Signed-off-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Reviewed-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/r/1629736550-2388-1-git-send-email-anthony.yznaga@oracle.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio_iommu_type1.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 0b4f7c174c7a..0e9217687f5c 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -612,17 +612,17 @@ static int vfio_wait(struct vfio_iommu *iommu) static int vfio_find_dma_valid(struct vfio_iommu *iommu, dma_addr_t start, size_t size, struct vfio_dma **dma_p) { - int ret; + int ret = 0; do { *dma_p = vfio_find_dma(iommu, start, size); if (!*dma_p) - ret = -EINVAL; + return -EINVAL; else if (!(*dma_p)->vaddr_invalid) - ret = 0; + return ret; else ret = vfio_wait(iommu); - } while (ret > 0); + } while (ret == WAITED); return ret; } |