diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 219c2c51a3122504e1dd357aa02c5de6f5175246..9b9f28ea3db25651388ff7766219996354442b42 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2403,6 +2403,7 @@ static inline void iommu_prepare_isa(void)
 		printk(KERN_ERR "IOMMU: Failed to create 0-16MiB identity map; "
 		       "floppy might not work\n");
 
+	pci_dev_put(pdev);
 }
 #else
 static inline void iommu_prepare_isa(void)