Hi bbhatt:
On Wednesday, October 28, 2020 9:02 AM, bbhatt wrote:
> Hi Carl,
>
> Yes this change is needed. Good catch. I ran in to this issue as well when a
> dev_err() call was made with a bad MHI configuration.
[carl.yin] yes, I also meet this error with a bad MHI configuration.
>
> Maybe you can explain a little more in the commit text subject?
>
> You could say, "Fix null pointer access when parsing MHI configuration"?
>
> On 2020-10-26 22:33, carl.yin@xxxxxxxxxxx wrote:
> > From: carl <carl.yin@xxxxxxxxxxx>
> >
> > function parse_ev_cfg and parse_ch_cfg access mhi_cntrl->mhi_dev
> Functions parse_ev_cfg() and parse_ch_cfg()
> > before it is set in function mhi_register_controller,
> mhi_register_controller()
> > use cntrl_dev to instead mhi_dev.
> use cntrl_dev instead of mhi_dev.
> >
> > Signed-off-by: carl <carl.yin@xxxxxxxxxxx>
> With these commit text updates,
[carl.yin] thank for words correction, for my mother language is not English,
there are lots of words wrong in the commit.
>
> Reviewed-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx>
> > ---
> > drivers/bus/mhi/core/init.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
> > index 0ffdebde8..c6b43e90b 100644
> > --- a/drivers/bus/mhi/core/init.c
> > +++ b/drivers/bus/mhi/core/init.c
> > @@ -610,7 +610,7 @@ static int parse_ev_cfg(struct mhi_controller
> > *mhi_cntrl, {
> > struct mhi_event *mhi_event;
> > const struct mhi_event_config *event_cfg;
> > - struct device *dev = &mhi_cntrl->mhi_dev->dev;
> > + struct device *dev = mhi_cntrl->cntrl_dev;
> > int i, num;
> >
> > num = config->num_events;
> > @@ -692,7 +692,7 @@ static int parse_ch_cfg(struct mhi_controller
> > *mhi_cntrl,
> > const struct mhi_controller_config *config) {
> > const struct mhi_channel_config *ch_cfg;
> > - struct device *dev = &mhi_cntrl->mhi_dev->dev;
> > + struct device *dev = mhi_cntrl->cntrl_dev;
> > int i;
> > u32 chan;
>
> --
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> Linux Foundation Collaborative Project
