This fixes the bug introduced by this commit
ad54ae80c73f.
The bdrv_aio_ioctl() still could return null and we should return an error
in that case.
Cc: qemu-stable@nongnu.org
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit
d836f8d35dc418e24c3b11e2ea67d361b867b650)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
r->io_header.flags |= SG_FLAG_DIRECT_IO;
r->req.aiocb = bdrv_aio_ioctl(bdrv, SG_IO, &r->io_header, complete, r);
+ if (r->req.aiocb == NULL) {
+ return -EIO;
+ }
return 0;
}