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| author | Jason Wang <jasowang@redhat.com> | 2019-02-19 14:53:44 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-23 09:05:58 +0100 |
| commit | 38d315f14f845d2d5e95bfa22feeec4adcb4b5ee (patch) | |
| tree | cd37e2a791e862f1350bacf05baa62cad0e64814 /net/ipv4/tcp_ipv4.c | |
| parent | e80d53a8f249268428c443f00e4290980ca83ea9 (diff) | |
vhost: correctly check the return value of translate_desc() in log_used()
[ Upstream commit 816db7663565cd23f74ed3d5c9240522e3fb0dda ]
When fail, translate_desc() returns negative value, otherwise the
number of iovs. So we should fail when the return value is negative
instead of a blindly check against zero.
Detected by CoverityScan, CID# 1442593: Control flow issues (DEADCODE)
Fixes: cc5e71075947 ("vhost: log dirty page correctly")
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
0 files changed, 0 insertions, 0 deletions