[dpdk-dev] [PATCH v2] net/virtio-user: fix unchecked return value
SebastianX Basierski
sebastianx.basierski at intel.com
Tue Nov 14 10:27:35 CET 2017
Report error message if clearing O_NONBLOCK flag will fail,
then return from function.
---
v2:
Patch title changed.
---
Coverity issue: 143439
Fixes: ef53b6030039 ("net/virtio-user: support LSC")
Cc: jianfeng.tan at intel.com
Cc: yliu at fridaylinux.org
cc: dev at dpdk.org
Signed-off-by: SebastianX Basierski <sebastianx.basierski at intel.com>
Acked-by: Jianfeng Tan <jianfeng.tan at intel.com>
---
drivers/net/virtio/virtio_user_ethdev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 7be57ce..c1f7a64 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -109,7 +109,11 @@ virtio_user_read_dev_config(struct virtio_hw *hw, size_t offset,
} else {
dev->status |= VIRTIO_NET_S_LINK_UP;
}
- fcntl(dev->vhostfd, F_SETFL, flags & (~O_NONBLOCK));
+ if (fcntl(dev->vhostfd, F_SETFL,
+ flags & ~O_NONBLOCK) == -1) {
+ PMD_DRV_LOG(ERR, "error clearing O_NONBLOCK flag");
+ return;
+ }
}
*(uint16_t *)dst = dev->status;
}
--
2.7.4
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