[CRYPTO] api: Fix scatterwalk_sg_chain

[safe/jmp/linux-2.6] / include / crypto / scatterwalk.h

diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 224658b..833d208 100644 (file)
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -57,10 +57,14 @@ static inline void scatterwalk_sg_chain(struct scatterlist *sg1, int num,
                                        struct scatterlist *sg2)
 {
        sg_set_page(&sg1[num - 1], (void *)sg2, 0, 0);
+       sg1[num - 1].page_link &= ~0x02;
 }
 
 static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
 {
+       if (sg_is_last(sg))
+               return NULL;
+
        return (++sg)->length ? sg : (void *)sg_page(sg);
 }