Re: [PATCH] staging: unisys: virtpci: virtpci: Fix for possible null pointer dereference

[Peter Hurley]

On 01/30/2015 07:39 AM, Dan Carpenter wrote:
> Btw, if you have the smatch cross function database set up then you can
> figure out this sort of thing by using:
> 
> $ smdb.py virtpci_driver_attr_store
> 
> It says that:
> 
>      fs/sysfs/file.c |       sysfs_kf_write | (struct sysfs_ops)->store |  PARAM_VALUE |  0 | $ | 4096-2117777777777777777
> 
> So this is called from sysfs_kf_write() and parameter zero is a valid
> pointer.

Hi Dan,

This would be a good topic for an LWN.net article.

Regards,
Peter Hurley

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