Re: smatch stuff: serial: ifx6x60: oops on load

From: Alan Cox
Date: Wed Dec 29 2010 - 11:44:39 EST


On Mon, 20 Dec 2010 12:15:55 +0300
Dan Carpenter <error27@xxxxxxxxx> wrote:

> Smatch complains that the ifx6x60 driver in linux-next has a NULL
> dereference.
>
> drivers/serial/ifx6x60.c +986 ifx_spi_spi_probe(27)
> error: potential null derefence 'pl_data'.
>
> 984 ifx_dev->spi_timer.function = ifx_spi_timeout;
> 985 ifx_dev->spi_timer.data = (unsigned long)ifx_dev;
> 986 ifx_dev->is_6160 = pl_data->is_6160;
> ^^^^^^^
> "pl_data" is always NULL at this point. Presumably this crashes on load
> every time.

Getting the platform enabling patch in is on the todo list but it depends
on some other bits which are also not yet in the tree.

is_6160 needs to go anyway as it's not what the platform data really
indicates.

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