[PATCH 2/2] pinctrl: at91: Use platform_register/unregister_drivers()

From: Thierry Reding
Date: Wed Dec 02 2015 - 11:32:30 EST


From: Thierry Reding <treding@xxxxxxxxxx>

These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/pinctrl/pinctrl-at91.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 0d2fc0cff35e..47b625b1b789 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1828,20 +1828,20 @@ static struct platform_driver at91_pinctrl_driver = {
.remove = at91_pinctrl_remove,
};

+static struct platform_driver * const drivers[] = {
+ &at91_gpio_driver,
+ &at91_pinctrl_driver,
+};
+
static int __init at91_pinctrl_init(void)
{
- int ret;
-
- ret = platform_driver_register(&at91_gpio_driver);
- if (ret)
- return ret;
- return platform_driver_register(&at91_pinctrl_driver);
+ return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
arch_initcall(at91_pinctrl_init);

static void __exit at91_pinctrl_exit(void)
{
- platform_driver_unregister(&at91_pinctrl_driver);
+ platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}

module_exit(at91_pinctrl_exit);
--
2.5.0

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