Hi Chenbo,
Thanks for your reply.
I will fix this in next version.
> -----Original Message-----
> From: Xia, Chenbo <chenbo....@intel.com>
> Sent: Wednesday, June 15, 2022 10:04 AM
> To: Pei, Andy <andy....@intel.com>; dev@dpdk.org
> Cc: maxime.coque...@redhat.com; Wang, Xiao W <xiao.w.w...@intel.com>;
> Xu, Rosen <rosen...@intel.com>; Xiao, QimaiX <qimaix.x...@intel.com>
> Subject: RE: [PATCH] vdpa/ifc: fix null pointer dereference
>
> Hi Andy,
>
> > -----Original Message-----
> > From: Pei, Andy <andy....@intel.com>
> > Sent: Wednesday, June 8, 2022 3:34 PM
> > To: dev@dpdk.org
> > Cc: Xia, Chenbo <chenbo....@intel.com>; maxime.coque...@redhat.com;
> > Wang, Xiao W <xiao.w.w...@intel.com>; Xu, Rosen <rosen...@intel.com>;
> > Xiao, QimaiX <qimaix.x...@intel.com>
> > Subject: [PATCH] vdpa/ifc: fix null pointer dereference
> >
> > Fix null pointer dereference reported in coverity scan.
> >
> > Coverity issue: 378882
> > Fixes: 8162a4a9 ("vdpa/ifc/base: access correct register for blk
> > device")
>
> Commit id need to be 12 digits. Also pls leave a blank line between Fixes tag
> and signed-off
>
> Thanks,
> Chenbo
>
> > Signed-off-by: Andy Pei <andy....@intel.com>
> > ---
> > drivers/vdpa/ifc/base/ifcvf.c | 9 +++++++++
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/drivers/vdpa/ifc/base/ifcvf.c
> > b/drivers/vdpa/ifc/base/ifcvf.c index dd475a7..0a9f71a 100644
> > --- a/drivers/vdpa/ifc/base/ifcvf.c
> > +++ b/drivers/vdpa/ifc/base/ifcvf.c
> > @@ -255,6 +255,10 @@
> > u32 ring_state;
> >
> > cfg = hw->common_cfg;
> > + if (!cfg) {
> > + DEBUGOUT("common_cfg in HW is NULL.\n");
> > + return;
> > + }
> >
> > IFCVF_WRITE_REG16(IFCVF_MSI_NO_VECTOR, &cfg->msix_config);
> > for (i = 0; i < hw->nr_vring; i++) { @@ -262,6 +266,11 @@
> > IFCVF_WRITE_REG16(0, &cfg->queue_enable);
> > IFCVF_WRITE_REG16(IFCVF_MSI_NO_VECTOR, &cfg-
> > >queue_msix_vector);
> >
> > + if (!hw->lm_cfg) {
> > + DEBUGOUT("live migration cfg in HW is NULL.\n");
> > + continue;
> > + }
> > +
> > if (hw->device_type == IFCVF_BLK)
> > ring_state = *(u32 *)(hw->lm_cfg +
> > IFCVF_LM_RING_STATE_OFFSET +
> > --
> > 1.8.3.1
