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| author |   Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-03-27 14:23:40 +1100 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2017-04-11 13:40:09 -0600 |
| commit | 3393af24b665cb0aea7353b05e522b03ab1e7d73 (patch) | |
| tree | 4cead9a9bc1979fa5e333fca7a9b6185b405ee0b /drivers/vfio | |
| parent | vfio/powerpc/spapr_tce: Enforce IOMMU type compatibility check (diff) | |
| download | linux-dev-3393af24b665cb0aea7353b05e522b03ab1e7d73.tar.xz linux-dev-3393af24b665cb0aea7353b05e522b03ab1e7d73.zip | |
vfio/spapr_tce: Check kzalloc() return when preregistering memory
This adds missing checking for kzalloc() return value.
Fixes: 4b6fad7097f8 ("powerpc/mm/iommu, vfio/spapr: Put pages on VFIO container shutdown")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio_iommu_spapr_tce.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c index a7d811524092..78dca1aa6410 100644 --- a/drivers/vfio/vfio_iommu_spapr_tce.c +++ b/drivers/vfio/vfio_iommu_spapr_tce.c @@ -198,6 +198,11 @@ static long tce_iommu_register_pages(struct tce_container *container, return ret; tcemem = kzalloc(sizeof(*tcemem), GFP_KERNEL); + if (!tcemem) { + mm_iommu_put(container->mm, mem); + return -ENOMEM; + } + tcemem->mem = mem; list_add(&tcemem->next, &container->prereg_list); |