From: Fam Zheng <f...@redhat.com>
In bdrv_rw_co we report -EINVAL for nb_sectors > INT_MAX /
BDRV_SECTOR_SIZE, so a caller shouldn't exceed it.
Signed-off-by: Fam Zheng <f...@redhat.com>
Reviewed-by: Markus Armbruster <arm...@redhat.com>
Message-id: 1415603264-21497-1-git-send-email-f...@redhat.com
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
---
block.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block.c b/block.c
index c612826..a612594 100644
--- a/block.c
+++ b/block.c
@@ -2790,8 +2790,8 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags
flags)
if (nb_sectors <= 0) {
return 0;
}
- if (nb_sectors > INT_MAX) {
- nb_sectors = INT_MAX;
+ if (nb_sectors > INT_MAX / BDRV_SECTOR_SIZE) {
+ nb_sectors = INT_MAX / BDRV_SECTOR_SIZE;
}
ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &n);
if (ret < 0) {
--
2.1.0
