Re: [PATCH] spi: coldfire-qspi: Prevent NULL pointer dereference

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On Mon, Mar 10, 2014 at 08:48:40AM -0700, Steven King wrote:
> On Saturday 08 March 2014 10:11:10 pm Axel Lin wrote:

> > If pdata->cs_control is NULL, we will hit NULL pointer dereference in
> > mcfqspi_cs_select() and mcfqspi_cs_deselect(). Thus add NULL test for
> > pdata->cs_control in probe().

> NAK.

>  I suggest you read the code again.  There is no NULL pointer dereference and 
> further, by returning an error if cs_control is NULL, you've now broken the 
> design which was that cs_control is optional.

So, you've sent this after I'd applied the patch (having ignored prior
patches as well, the last activity was in 2012), that's a bit
unfortunate.  I've reverted the patch but please if you're reviewing
changes to the driver can you indicate if things are OK when you do so -
if patches aren't getting any review from people working on the driver
the tendency is to assume that the driver has been abandoned.

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