From: Vivek Goyal <vgoyal@redhat.com>
To: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Cc: Jiri Kosina <jkosina@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Jens Axboe <axboe@kernel.dk>, Tejun Heo <tj@kernel.org>,
linux-kernel@vger.kernel.org, Ben Hutchings <ben@decadent.org.uk>
Subject: Re: [PATCH 5/6] floppy: remove check for allocated queue on do_floppy_init error handling
Date: Fri, 10 Aug 2012 13:36:53 -0400 [thread overview]
Message-ID: <20120810173653.GK5416@redhat.com> (raw)
In-Reply-To: <1344542391-16474-6-git-send-email-herton.krzesinski@canonical.com>
On Thu, Aug 09, 2012 at 04:59:50PM -0300, Herton Ronaldo Krzesinski wrote:
> The check "if (disks[dr]->queue)" check is bogus, if we reach there
> for each dr should exist an queue allocated (note that we decrement dr
> first on entering the loop).
>
> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
As mentioned in second patch, I like going trhough full array of drives
and do cleanup as needed instead of relying on "dr" variable.
But if you don't like that, then I am not as such against this approach.
Was just trying to keep all put_disk() at one place.
Thanks
Vivek
> ---
> drivers/block/floppy.c | 16 +++++++---------
> 1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
> index 3eafe93..438ffc9 100644
> --- a/drivers/block/floppy.c
> +++ b/drivers/block/floppy.c
> @@ -4332,15 +4332,13 @@ out_unreg_blkdev:
> out_put_disk:
> while (dr--) {
> del_timer_sync(&motor_off_timer[dr]);
> - if (disks[dr]->queue) {
> - blk_cleanup_queue(disks[dr]->queue);
> - /*
> - * put_disk() is not paired with add_disk() and
> - * will put queue reference one extra time. fix it.
> - */
> - if (!disk_registered[dr])
> - disks[dr]->queue = NULL;
> - }
> + blk_cleanup_queue(disks[dr]->queue);
> + /*
> + * put_disk() is not paired with add_disk() and
> + * will put queue reference one extra time. fix it.
> + */
> + if (!disk_registered[dr])
> + disks[dr]->queue = NULL;
> put_disk(disks[dr]);
> }
> destroy_workqueue(floppy_wq);
> --
> 1.7.9.5
next prev parent reply other threads:[~2012-08-10 17:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 19:59 Bug fixes/cleanups for floppy driver (v2) Herton Ronaldo Krzesinski
2012-08-09 19:59 ` [PATCH 1/6] floppy: don't call alloc_ordered_workqueue inside the alloc_disk loop Herton Ronaldo Krzesinski
2012-08-10 17:11 ` Vivek Goyal
2012-08-09 19:59 ` [PATCH 2/6] floppy: do put_disk on current dr if blk_init_queue fails Herton Ronaldo Krzesinski
2012-08-10 17:24 ` Vivek Goyal
2012-08-09 19:59 ` [PATCH 3/6] floppy: avoid leaking extra reference to queue on do_floppy_init error handling Herton Ronaldo Krzesinski
2012-08-10 17:25 ` Vivek Goyal
2012-08-09 19:59 ` [PATCH 4/6] floppy: properly handle failure on add_disk loop Herton Ronaldo Krzesinski
2012-08-10 17:34 ` Vivek Goyal
2012-08-09 19:59 ` [PATCH 5/6] floppy: remove check for allocated queue on do_floppy_init error handling Herton Ronaldo Krzesinski
2012-08-10 17:36 ` Vivek Goyal [this message]
2012-08-13 16:22 ` Herton Ronaldo Krzesinski
2012-08-09 19:59 ` [PATCH 6/6] floppy: use disk_registered for checking if a drive is present Herton Ronaldo Krzesinski
2012-08-10 17:35 ` Vivek Goyal
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