Commit d836f8d3 authored by Pavel Hrdina's avatar Pavel Hrdina Committed by Paolo Bonzini
Browse files

scsi-generic: check the return value of bdrv_aio_ioctl in execute_command 



This fixes the bug introduced by this commit ad54ae80.
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: default avatarPavel Hrdina <phrdina@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 53254e56

hw/scsi/scsi-generic.c

+3 −0
Original line number Diff line number Diff line
@@ -174,6 +174,9 @@ static int execute_command(BlockDriverState *bdrv, 
    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;

}