On Wed, Nov 13, 2013 at 02:32:32PM -0300, Ezequiel Garcia wrote:
> On Wed, Nov 13, 2013 at 10:50:24AM +0300, Dan Carpenter wrote:
> > "of_id->compatible" is an array and not a pointer so it can never be
> > NULL.
> >
> > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > ---
> > I'm not able to compile this.
> >
> > diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
> > index 2394e97..c646a76 100644
> > --- a/drivers/bus/mvebu-mbus.c
> > +++ b/drivers/bus/mvebu-mbus.c
> > @@ -734,11 +734,11 @@ int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
> > {
> > const struct of_device_id *of_id;
> >
> > - for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++)
> > + for (of_id = of_mvebu_mbus_ids; of_id->compatible[0]; of_id++)
> > if (!strcmp(of_id->compatible, soc))
> > break;
> >
> > - if (!of_id->compatible) {
> > + if (!of_id->compatible[0]) {
> > pr_err("could not find a matching SoC family\n");
> > return -ENODEV;
> > }
>
> Nice catch.
>
> Just for the sake of it, I reproduced the bug, and then tested it's
> solved by the patch. The issue only hits the old platforms that aren't
> converted to DT.
>
> Acked-by: Ezequiel Garcia <ezequiel.garcia@xxxxxxxxxxxxxxxxxx>
>
Jason:
FWIW, in case you've missed this mail, I tested this when Dan reported
it. See above.
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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