amd-iommu: set evt_buf_size correctly
The setting of this variable got lost during the suspend/resume
implementation. But keeping this variable zero causes a divide-by-zero
error in the interrupt handler. This patch fixes this.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index ec72c77..c1b17e9 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -472,6 +472,8 @@
if (iommu->evt_buf == NULL)
return NULL;
+ iommu->evt_buf_size = EVT_BUFFER_SIZE;
+
return iommu->evt_buf;
}
