Re: [PATCH] misc/fastrpc: add checked value for dma_set_mask

[Kroah-Hartman <gregkh@linuxfoundation.org>]

On Thu, Mar 21, 2019 at 05:31:51PM +0800, Bo YU wrote:
> On Tue, Mar 19, 2019 at 10:05 AM Bo YU <tsu.yubo@gmail.com> wrote:
> >
> > There be should check return value from dma_set_mask to throw some infos
> > if fail to set dma mask.
> >
> > Detected by CoverityScan, CID# 1443983:  Error handling issues (CHECKED_RETURN)
> >
> > Fixes:f6f9279f2bf0 (misc: fastrpc: Add Qualcomm fastrpc basic driver model)
> > Signed-off-by: Bo YU <tsu.yubo@gmail.com>
> > ---
> >  drivers/misc/fastrpc.c | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
> > index 39f832d27288..36d0d5c9cfba 100644
> > --- a/drivers/misc/fastrpc.c
> > +++ b/drivers/misc/fastrpc.c
> > @@ -1184,6 +1184,7 @@ static int fastrpc_cb_probe(struct platform_device *pdev)
> >         struct fastrpc_session_ctx *sess;
> >         struct device *dev = &pdev->dev;
> >         int i, sessions = 0;
> > +       int rc;
> >
> >         cctx = dev_get_drvdata(dev->parent);
> >         if (!cctx)
> > @@ -1213,7 +1214,11 @@ static int fastrpc_cb_probe(struct platform_device *pdev)
> >         }
> >         cctx->sesscount++;
> >         spin_unlock(&cctx->lock);
> > -       dma_set_mask(dev, DMA_BIT_MASK(32));
> > +       rc = dma_set_mask(dev, DMA_BIT_MASK(32));
> > +       if (rc) {
> > +               dev_err(dev, "32-bit DMA enable failed\n");
> > +               return rc;
> > +       }
> >
> Ping?
> Do me need resend it?

2 days?  Please give us time to catch up on patches, right after the
merge window closed.  This isn't a big deal, we have much higher
priority patches to review.  It will be gotten to eventually :)

thanks,

greg k-h