[PATCH 0/2] Fix the assert failure in scsi_dma_complete

[Li Qiang]

Currently in 'megasas_map_sgl' when 'iov_count=0' will just return
success however the 'cmd' doens't contain any iov. This will cause
the assert in 'scsi_dma_complete' failed. This is because in
'dma_blk_cb' the 'dbs->sg_cur_index == dbs->sg->nsg' will be true
and just call 'dma_complete'. However now there is no aiocb returned.

This is the LP#1878263:

-->https://bugs.launchpad.net/qemu/+bug/1878263

To solve this we will consider the 'iov_count=0' is an error.
In the first patch, I uses -1 to indicate an error and in the second
patch I consider 'iov_count=0' is an error.

Li Qiang (2):
  hw: megasas: return -1 when 'megasas_map_sgl' fails
  hw: megasas: consider 'iov_count=0' is an error in megasas_map_sgl

 hw/scsi/megasas.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

-- 
2.17.1