openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

s390/ipl: cast to SCSIDevice directly 

Coverity notes that the result of object_dynamic_cast() to
SCSIDevice is not checked in s390_gen_initial_iplp(); as
we know that we always have a SCSIDevice in that branch,
we can instead cast via SCSI_DEVICE directly.

Coverity: CID 1401098
Fixes: 44445d8668 ("s390 vfio-ccw: Add bootindex property and IPLB data")
Message-Id: <20190502155516.12415-1-cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Cornelia Huck 2019-05-02 17:46:51 +02:00
parent d8276573da
commit 216bdd274a
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hw/s390x/ipl.c
View File

@ -374,8 +374,7 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
if (ccw_dev) {
switch (devtype) {
case CCW_DEVTYPE_SCSI:
sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
TYPE_SCSI_DEVICE);
sd = SCSI_DEVICE(dev_st);
ipl->iplb.len = cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN);
ipl->iplb.blk0_len =
cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER_LEN);