inetdevice: fixed signed integer overflow

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / bio.h

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5a4d39b..5aa372a 100644 (file)
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -216,9 +216,9 @@ static inline void bvec_iter_advance(struct bio_vec *bv, struct bvec_iter *iter,
 }
 
 #define for_each_bvec(bvl, bio_vec, iter, start)                       \
 }
 
 #define for_each_bvec(bvl, bio_vec, iter, start)                       \

-       for ((iter) = start;                                            \
-            (bvl) = bvec_iter_bvec((bio_vec), (iter)),                 \
-               (iter).bi_size;                                         \
+       for (iter = (start);                                            \
+            (iter).bi_size &&                                          \
+               ((bvl = bvec_iter_bvec((bio_vec), (iter))), 1); \

             bvec_iter_advance((bio_vec), &(iter), (bvl).bv_len))
 
 
             bvec_iter_advance((bio_vec), &(iter), (bvl).bv_len))