Re: [PATCH v2] hfsplus: fix s_fs_info leak on mount setup failure

From: Al Viro

Date: Wed Feb 04 2026 - 12:55:49 EST


On Wed, Feb 04, 2026 at 05:40:47PM +0000, Al Viro wrote:
> On Wed, Feb 04, 2026 at 05:30:29PM +0000, Al Viro wrote:
>
> > While we are at it, this
> > kfree(sbi->s_vhdr_buf);
> > kfree(sbi->s_backup_vhdr_buf);
> > might as well go into ->kill_sb(). That would result in the (untested)
> > delta below and IMO it's easier to follow that way...
>
> AFAICS once you've got ->s_root set, you can just return an error and
> be done with that - regular cleanup should take care of those parts
> (note that iput(NULL) is explicitly a no-op and the same goes for
> cancel_delayed_work_sync() on something that has never been through
> queue_delayed_work()).

Scratch the last one - you'd get nls leak that way, thanks to the
trickery in there... Depending on how much do you dislike cleanup.h
stuff, there might be a way to deal with that, though...