Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9e91fdb32d449a6b57f8236a793ae2f3df79b4d8
Commit:     9e91fdb32d449a6b57f8236a793ae2f3df79b4d8
Parent:     24c31eede658c30e4fcc93505589fd519c3aa4b8
Author:     FUJITA Tomonori <[EMAIL PROTECTED]>
AuthorDate: Wed Oct 17 10:06:18 2007 +0200
Committer:  Jens Axboe <[EMAIL PROTECTED]>
CommitDate: Wed Oct 17 10:06:18 2007 +0200

    swiotlb: fix map_sg failure handling
    
    sg list elements might not be continuous.
    
    Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
    Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
---
 lib/swiotlb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index c419ecf..752fd95 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -696,7 +696,7 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist 
*sgl, int nelems,
                                /* Don't panic here, we expect map_sg users
                                   to do proper error handling. */
                                swiotlb_full(hwdev, sg->length, dir, 0);
-                               swiotlb_unmap_sg(hwdev, sg - i, i, dir);
+                               swiotlb_unmap_sg(hwdev, sgl, i, dir);
                                sgl[0].dma_length = 0;
                                return 0;
                        }
-
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