On Fri, Jun 21, 2019 at 03:22:22PM +0200, Greg KH wrote: > On Fri, Jun 21, 2019 at 12:33:57PM +0100, Mark Brown wrote: > > struct dentry *d; > > > > - if (!parent) > > + if (!parent || IS_ERR(parent)) > > return; > How can parent be NULL? It was more effort than it was worth to check to see if it could actually be NULL through default initialization or something and fix it than just not delete the check so I just left it there. I'll probably go back and clean it up more thorougly at some point. > I am trying to make it so that debugfs doesn't return anything for when > a file is created. Now if that will ever be possible or not, I don't > know, but I am pretty close in one of the branches in my driver-core > tree... You mentioned this in a mail last week, I then replied pointing out that this is not helpful as it reduces the robustness and quality of our debugging tools and you then did not respond. This is a view I still hold and in any case debugfs as it stands (and was in the kernel versions since this was broken) is still capable of reporting errors so we should fix that.
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