Commit bab8ac1b authored Mar 27, 2017 by Alexey Kardashevskiy Committed by Greg Kroah-Hartman Mar 22, 2018

vfio/spapr_tce: Check kzalloc() return when preregistering memory




[ Upstream commit 3393af24b665cb0aea7353b05e522b03ab1e7d73 ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 5d7601dc

drivers/vfio/vfio_iommu_spapr_tce.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -195,6 +195,11 @@ 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);