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vhost_iommu: handle realloc() failure

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Change-Id: I50203e0e02d2201fea5112789c1fd84b9a61417a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369283
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Daniel Verkamp 2017-07-12 12:35:20 -07:00
parent 4c408e7924
commit 684dd86f34
1 changed files with 11 additions and 2 deletions
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13
lib/vhost/vhost_iommu.c
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@ -196,8 +196,17 @@ vfio_pci_memory_region_op(uint64_t vaddr, uint64_t phys_addr, uint64_t size, int
}
if (vfio_cfg.maps_count == vfio_cfg.maps_max_count) {
vfio_cfg.maps_max_count += 128;
vfio_cfg.maps = realloc(vfio_cfg.maps, vfio_cfg.maps_max_count * sizeof(vfio_cfg.maps[0]));
struct vfio_map *new_maps;
size_t new_maps_max_count;
new_maps_max_count = vfio_cfg.maps_max_count + 128;
new_maps = realloc(vfio_cfg.maps, new_maps_max_count * sizeof(vfio_cfg.maps[0]));
if (new_maps == NULL) {
return -ENOMEM;
}
vfio_cfg.maps_max_count = new_maps_max_count;
vfio_cfg.maps = new_maps;
map = &vfio_cfg.maps[idx];
}