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Diffstat (limited to 'drivers/iommu/virtio-iommu.c')
-rw-r--r--drivers/iommu/virtio-iommu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 17dcd826f5..379ebe03ef 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -85,7 +85,7 @@ struct viommu_request {
void *writeback;
unsigned int write_offset;
unsigned int len;
- char buf[];
+ char buf[] __counted_by(len);
};
#define VIOMMU_FAULT_RESV_MASK 0xffffff00
@@ -230,7 +230,7 @@ static int __viommu_add_req(struct viommu_dev *viommu, void *buf, size_t len,
if (write_offset <= 0)
return -EINVAL;
- req = kzalloc(sizeof(*req) + len, GFP_ATOMIC);
+ req = kzalloc(struct_size(req, buf, len), GFP_ATOMIC);
if (!req)
return -ENOMEM;