Jason Wang d5a74d2b46 vhost: correctly check the return value of translate_desc() in log_used() ...

[ Upstream commit 816db76635 ]

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: cc5e710759 ("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>

2019-02-23 09:06:43 +01:00

..

Kconfig

tap: tap as an independent module

2017-02-11 20:59:41 -05:00

Kconfig.vringh

vhost: split out vringh Kconfig

2016-08-02 16:54:28 +03:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

net.c

vhost: log dirty page correctly

2019-01-31 08:13:41 +01:00

scsi.c

vhost/scsi: truncate T10 PI iov_iter to prot_bytes

2018-11-21 09:24:08 +01:00

test.c

Merge 4.8-rc5 into char-misc-next

2016-09-05 08:04:07 +02:00

test.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vhost.c

vhost: correctly check the return value of translate_desc() in log_used()

2019-02-23 09:06:43 +01:00

vhost.h

vhost: log dirty page correctly

2019-01-31 08:13:41 +01:00

vringh.c

vringh: kill off ACCESS_ONCE()

2016-12-16 00:13:36 +02:00

vsock.c

vhost/vsock: fix uninitialized vhost_vsock->guest_cid

2019-01-13 10:01:04 +01:00