X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=lib%2Fswiotlb.c;h=5fddf720da73e42b6568b80f64234e47033bc142;hb=dbb6be6d5e974c42bbecd183effaa0df69e1dd8b;hp=0c12d7cce300d1c8cc465993b3c04e38693fe2d3;hpb=ad32e8cb86e7894aac51c8963eaa9f36bb8a4e14;p=safe%2Fjmp%2Flinux-2.6

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 0c12d7c..5fddf72 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/ctype.h>
 #include <linux/highmem.h>
+#include <linux/gfp.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>
@@ -111,6 +112,7 @@ setup_io_tlb_npages(char *str)
 		++str;
 	if (!strcmp(str, "force"))
 		swiotlb_force = 1;
+
 	return 1;
 }
 __setup("swiotlb=", setup_io_tlb_npages);
@@ -484,7 +486,7 @@ do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir)
 
 	/*
 	 * Return the buffer to the free list by setting the corresponding
-	 * entries to indicate the number of contigous entries available.
+	 * entries to indicate the number of contiguous entries available.
 	 * While returning the entries to the free list, we merge the entries
 	 * with slots below and above the pool being returned.
 	 */
@@ -548,7 +550,7 @@ 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.
 		 */
@@ -570,7 +572,7 @@ 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);