netdev - Re: [PATCH 44/50] sound: usb: caiaq: spin

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <51DEBBF5.7090909@gmail.com>
Date:	Thu, 11 Jul 2013 16:06:45 +0200
From:	Daniel Mack <zonque@...il.com>
To:	Ming Lei <ming.lei@...onical.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, Oliver Neukum <oliver@...kum.org>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-input@...r.kernel.org, linux-bluetooth@...r.kernel.org,
	netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
	linux-media@...r.kernel.org, alsa-devel@...a-project.org,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>
Subject: Re: [PATCH 44/50] sound: usb: caiaq: spin_lock in complete() cleanup

On 11.07.2013 11:06, Ming Lei wrote:
> Complete() will be run with interrupt enabled, so change to
> spin_lock_irqsave().
> 
> Cc: Daniel Mack <zonque@...il.com>
> Cc: Jaroslav Kysela <perex@...ex.cz>
> Cc: Takashi Iwai <tiwai@...e.de>
> Cc: alsa-devel@...a-project.org
> Signed-off-by: Ming Lei <ming.lei@...onical.com>

Sound right to me, thanks.

Acked-by: Daniel Mack <zonque@...il.com>



> ---
>  sound/usb/caiaq/audio.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
> index 7103b09..e5675ab 100644
> --- a/sound/usb/caiaq/audio.c
> +++ b/sound/usb/caiaq/audio.c
> @@ -672,10 +672,11 @@ static void read_completed(struct urb *urb)
>  		offset += len;
>  
>  		if (len > 0) {
> -			spin_lock(&cdev->spinlock);
> +			unsigned long flags;
> +			spin_lock_irqsave(&cdev->spinlock, flags);
>  			fill_out_urb(cdev, out, &out->iso_frame_desc[outframe]);
>  			read_in_urb(cdev, urb, &urb->iso_frame_desc[frame]);
> -			spin_unlock(&cdev->spinlock);
> +			spin_unlock_irqrestore(&cdev->spinlock, flags);
>  			check_for_elapsed_periods(cdev, cdev->sub_playback);
>  			check_for_elapsed_periods(cdev, cdev->sub_capture);
>  			send_it = 1;
> 

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html