Ack: [PATCH 1/1] ite-cir: postpone ISR registration

Brad Figg brad.figg at canonical.com
Wed Apr 18 19:24:55 UTC 2012


On 04/18/2012 12:09 PM, Luis Henriques wrote:
> BugLink: http://bugs.launchpad.net/bugs/972723
> 
> An early registration of an ISR was causing a crash to several users.  The
> reason was that IRQs were being triggered before the driver initialisation
> was completed.
> 
> This patch fixes this by moving the invocation to request_irq() to a later
> stage on the driver probe function.
> 
> Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
> ---
>  drivers/media/rc/ite-cir.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
> index 682009d..98d8ccf 100644
> --- a/drivers/media/rc/ite-cir.c
> +++ b/drivers/media/rc/ite-cir.c
> @@ -1521,10 +1521,6 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
>  				dev_desc->io_region_size, ITE_DRIVER_NAME))
>  		goto failure;
>  
> -	if (request_irq(itdev->cir_irq, ite_cir_isr, IRQF_SHARED,
> -			ITE_DRIVER_NAME, (void *)itdev))
> -		goto failure;
> -
>  	/* set driver data into the pnp device */
>  	pnp_set_drvdata(pdev, itdev);
>  	itdev->pdev = pdev;
> @@ -1600,6 +1596,10 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
>  	rdev->driver_name = ITE_DRIVER_NAME;
>  	rdev->map_name = RC_MAP_RC6_MCE;
>  
> +	if (request_irq(itdev->cir_irq, ite_cir_isr, IRQF_SHARED,
> +			ITE_DRIVER_NAME, (void *)itdev))
> +		goto failure;
> +
>  	ret = rc_register_device(rdev);
>  	if (ret)
>  		goto failure;


-- 
Brad Figg brad.figg at canonical.com http://www.canonical.com




More information about the kernel-team mailing list