From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>
Subject: Re: [PATCH] qspinlock: no need to check return value of debugfs_create functions
Date: Wed, 23 Jan 2019 10:22:45 +0100 [thread overview]
Message-ID: <20190123092245.GB14010@kroah.com> (raw)
In-Reply-To: <20190123091016.GA15019@brain-police>
On Wed, Jan 23, 2019 at 09:10:18AM +0000, Will Deacon wrote:
> On Tue, Jan 22, 2019 at 04:21:43PM +0100, 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.
> >
> > Cc: Peter Zijlstra <peterz@infradead.org>
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: Will Deacon <will.deacon@arm.com>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > ---
> > kernel/locking/qspinlock_stat.h | 18 ++++--------------
> > 1 file changed, 4 insertions(+), 14 deletions(-)
>
> Curious, but are you planning to make these functions return void after
> you've modified all of the callers?
I wish, but I can't, as those values are needed for some other debugfs
calls.
thanks,
greg k-h
prev parent reply other threads:[~2019-01-23 9:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-22 15:21 [PATCH] qspinlock: no need to check return value of debugfs_create functions Greg Kroah-Hartman
2019-01-23 8:14 ` Peter Zijlstra
2019-02-01 9:12 ` Greg Kroah-Hartman
2019-01-23 9:10 ` Will Deacon
2019-01-23 9:22 ` Greg Kroah-Hartman [this message]
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