[Nouveau] [PATCH] nouveau: no need to check return value of debugfs_create functions

[Greg Kroah-Hartman]

On Thu, Feb 13, 2020 at 02:30:09PM -0800, John Hubbard wrote:
> On 2/9/20 2:55 AM, Greg Kroah-Hartman wrote:
> > When calling debugfs functions, there is no need to ever check the
> > return value.  The function can work or not, but the code logic should
> > never do something different based on this.
> > 
> 
> Should we follow that line of reasoning further, and simply return void
> from the debugfs functions--rather than playing whack-a-mole with this
> indefinitely?

That is what we (well I) have been doing.  Look at all of the changes
that have happened to include/linux/debugfs.h over the past few
releases.  I'm slowly winnowing down the api to make it impossible to
get wrong for this type of thing, and am almost there.

DRM is the big fish left to tackle, I have submitted some patches in the
past, but lots more cleanup needs to be done to get them into mergable
shape.  I just need to find the time...

thanks,

greg k-h