---

yaml --- r: 359614 b: refs/heads/master c: 38901e0 h: refs/heads/master v: v3
git-mirror · Jan 25, 2013 · e9e95ec · e9e95ec
1 parent c74375f
commit e9e95ec
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 98571b5aa776d4a69eadd7d4e5c9d4e69365ab9a
+refs/heads/master: 38901e0f240b634467fb31743365af80a006be33
diff --git a/trunk/drivers/block/rbd.c b/trunk/drivers/block/rbd.c
@@ -820,6 +820,7 @@ static int rbd_get_num_segments(struct rbd_image_header *header,
 {
 	u64 start_seg;
 	u64 end_seg;
+	u64 result;
 
 	if (!len)
 		return 0;
@@ -829,7 +830,11 @@ static int rbd_get_num_segments(struct rbd_image_header *header,
 	start_seg = ofs >> header->obj_order;
 	end_seg = (ofs + len - 1) >> header->obj_order;
 
-	return end_seg - start_seg + 1;
+	result = end_seg - start_seg + 1;
+	if (result > (u64) INT_MAX)
+		return -ERANGE;
+
+	return (int) result;
 }
 
 /*