From: Brian Norris <briannorris@chromium.org>
To: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: linux-bluetooth@vger.kernel.org,
Amitkumar Karwar <akarwar@marvell.com>,
Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Gustavo Padovan <gustavo@padovan.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] btmrvl: avoid double-disable_irq() race
Date: Fri, 20 Jan 2017 11:29:17 -0800 [thread overview]
Message-ID: <20170120192916.GC84521@google.com> (raw)
In-Reply-To: <1484910860-7690-1-git-send-email-jeffy.chen@rock-chips.com>
On Fri, Jan 20, 2017 at 07:14:18PM +0800, Jeffy Chen wrote:
> It's much the same as what we did for mwifiex in:
> b9da4d2 mwifiex: avoid double-disable_irq() race
You could still stand to borrow some of the explanation for your commit
message here...
> Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Fix looks good:
Reviewed-by: Brian Norris <briannorris@chromium.org>
> ---
>
> drivers/bluetooth/btmrvl_sdio.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
> index d02f2c1..c738bae 100644
> --- a/drivers/bluetooth/btmrvl_sdio.c
> +++ b/drivers/bluetooth/btmrvl_sdio.c
> @@ -1682,8 +1682,12 @@ static int btmrvl_sdio_resume(struct device *dev)
> /* Disable platform specific wakeup interrupt */
> if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
> disable_irq_wake(card->plt_wake_cfg->irq_bt);
> - if (!card->plt_wake_cfg->wake_by_bt)
> - disable_irq(card->plt_wake_cfg->irq_bt);
> + disable_irq(card->plt_wake_cfg->irq_bt);
> + if (card->plt_wake_cfg->wake_by_bt)
> + /* Undo our disable, since interrupt handler already
> + * did this.
> + */
> + enable_irq(card->plt_wake_cfg->irq_bt);
> }
>
> return 0;
> --
> 2.1.4
>
>
prev parent reply other threads:[~2017-01-20 19:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-20 11:14 [PATCH 1/3] btmrvl: avoid double-disable_irq() race Jeffy Chen
2017-01-20 11:14 ` [PATCH 2/3] btmrvl: set irq_bt to -1 when failed to parse it Jeffy Chen
2017-01-20 19:27 ` Brian Norris
2017-01-20 11:14 ` [PATCH 3/3] btmrvl: use dt's irqflags for wakeup pin Jeffy Chen
2017-01-20 19:19 ` Brian Norris
2017-01-20 19:29 ` Brian Norris [this message]
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