[Xen-devel] [RFC PATCH 19/60] hyper_dmabuf: fix the case with sharing a buffer with 2 pages

[Dongwon Kim <dongwon.kim@xxxxxxxxx>]

From: Mateusz Polrola <mateuszx.potrola@xxxxxxxxx>

Checking whether buffer has more than two pages should be done
by evaluating nents > 1 instead of i > 1 to properly cover the
case when nents == 2.

Signed-off-by: Dongwon Kim <dongwon.kim@xxxxxxxxx>
---
 drivers/xen/hyper_dmabuf/hyper_dmabuf_imp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/hyper_dmabuf/hyper_dmabuf_imp.c 
b/drivers/xen/hyper_dmabuf/hyper_dmabuf_imp.c
index b61d29a..9b05063 100644
--- a/drivers/xen/hyper_dmabuf/hyper_dmabuf_imp.c
+++ b/drivers/xen/hyper_dmabuf/hyper_dmabuf_imp.c
@@ -129,7 +129,7 @@ struct sg_table* hyper_dmabuf_create_sgt(struct page 
**pages,
                sg_set_page(sgl, pages[i], PAGE_SIZE, 0);
        }
 
-       if (i > 1) /* more than one page */ {
+       if (nents > 1) /* more than one page */ {
                sgl = sg_next(sgl);
                sg_set_page(sgl, pages[i], last_len, 0);
        }
-- 
2.7.4


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