X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=lib%2Fswiotlb.c;h=437eedb5a53ba1feae04f98b5def86798462f920;hb=288f02bbb6e9609cbaf1eb7a9cb97ae45ce090b2;hp=5bc01803f8f85bf29557bddc77afa04b60bdb8ad;hpb=689a8ab32fa0ba11c4005b3733e59fb7094c2870;p=mv-sheeva.git

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 5bc01803f8f..437eedb5a53 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -549,7 +549,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		dma_mask = hwdev->coherent_dma_mask;
 
 	ret = (void *)__get_free_pages(flags, order);
-	if (ret && swiotlb_virt_to_bus(hwdev, ret) + size > dma_mask) {
+	if (ret && swiotlb_virt_to_bus(hwdev, ret) + size - 1 > dma_mask) {
 		/*
 		 * The allocated memory isn't reachable by the device.
 		 */
@@ -571,7 +571,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	dev_addr = swiotlb_virt_to_bus(hwdev, ret);
 
 	/* Confirm address can be DMA'd by device */
-	if (dev_addr + size > dma_mask) {
+	if (dev_addr + size - 1 > dma_mask) {
 		printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
 		       (unsigned long long)dma_mask,
 		       (unsigned long long)dev_addr);