From: Joerg Roedel <jroedel@xxxxxxx> 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 9db4ad9183aad0e9567f6afb23db1bdc9aa6c2a9 upstream. Check for the ->map and not the ->unmap pointer. Signed-off-by: Joerg Roedel <jroedel@xxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- drivers/iommu/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index fbe9ca734f8f..9d71a57c96b1 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -794,7 +794,7 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova, size_t orig_size = size; int ret = 0; - if (unlikely(domain->ops->unmap == NULL || + if (unlikely(domain->ops->map == NULL || domain->ops->pgsize_bitmap == 0UL)) return -ENODEV; -- 2.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html