1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index ec72c7779d6b..c1b17e97252e 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -472,6 +472,8 @@ static u8 * __init alloc_event_buffer(struct amd_iommu *iommu)
         if (iommu->evt_buf == NULL)
                 return NULL;
 
+        iommu->evt_buf_size = EVT_BUFFER_SIZE;
+
         return iommu->evt_buf;
 }