Messages in this thread Patch in this message | | | Date | Thu, 18 Feb 2021 09:08:12 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH] irqdomain: remove debugfs_file from struct irq_domain |
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On Thu, 18 Feb 2021 08:52:53 +0000, Greg KH <gregkh@linuxfoundation.org> wrote:
[...]
> Ok, how about this: > > > diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c > index 2fcf66473436..86c7f0489620 100644 > --- a/fs/debugfs/inode.c > +++ b/fs/debugfs/inode.c > @@ -297,7 +297,7 @@ struct dentry *debugfs_lookup(const char *name, struct dentry *parent) > { > struct dentry *dentry; > > - if (IS_ERR(parent)) > + if (!debugfs_initialized() || IS_ERR_OR_NULL(name) || IS_ERR(parent)) > return NULL; > > if (!parent) > @@ -318,6 +318,9 @@ static struct dentry *start_creating(const char *name, struct dentry *parent) > if (!(debugfs_allow & DEBUGFS_ALLOW_API)) > return ERR_PTR(-EPERM); > > + if (!debugfs_initialized()) > + return ERR_PTR(-ENOENT); > + > pr_debug("creating file '%s'\n", name); > > if (IS_ERR(parent)) >
That one boots correctly in a guest.
Thanks,
M.
-- Without deviation from the norm, progress is not possible.
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