On Monday 21 January 2008, Dave Young wrote:
> Convert to use the class iteration api.
>
> Signed-off-by: Dave Young <[EMAIL PROTECTED]>
Ack.
> ---
> drivers/spi/spi.c | 24 ++++++++++++++----------
> 1 file changed, 14 insertions(+), 10 deletions(-)
>
> diff -upr linux/drivers/spi/spi.c linux.new/drivers/spi/spi.c
> --- linux/drivers/spi/spi.c 2008-01-22 15:09:49.000000000 +0800
> +++ linux.new/drivers/spi/spi.c 2008-01-22 15:09:49.000000000 +0800
> @@ -485,6 +485,15 @@ void spi_unregister_master(struct spi_ma
> }
> EXPORT_SYMBOL_GPL(spi_unregister_master);
>
> +static int __spi_master_match(struct device *dev, void *data)
> +{
> + struct spi_master *m;
> + u16 *bus_num = data;
> +
> + m = container_of(dev, struct spi_master, dev);
> + return m->bus_num == *bus_num;
> +}
> +
> /**
> * spi_busnum_to_master - look up master associated with bus_num
> * @bus_num: the master's bus number
> @@ -499,17 +508,12 @@ struct spi_master *spi_busnum_to_master(
> {
> struct device *dev;
> struct spi_master *master = NULL;
> - struct spi_master *m;
>
> - down(&spi_master_class.sem);
> - list_for_each_entry(dev, &spi_master_class.children, node) {
> - m = container_of(dev, struct spi_master, dev);
> - if (m->bus_num == bus_num) {
> - master = spi_master_get(m);
> - break;
> - }
> - }
> - up(&spi_master_class.sem);
> + dev = class_find_device(&spi_master_class, &bus_num,
> + __spi_master_match);
> + if (dev)
> + master = container_of(dev, struct spi_master, dev);
> + /* reference got in class_find_device */
> return master;
> }
> EXPORT_SYMBOL_GPL(spi_busnum_to_master);
>
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