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Date: Wed, 2 Dec 2015 17:31:54 +0100
From: Thierry Reding <thierry.reding@...il.com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] pinctrl: adi2: Use platform_register/unregister_drivers()
From: Thierry Reding <treding@...dia.com>
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@...dia.com>
---
drivers/pinctrl/pinctrl-adi2.c | 24 ++++++++----------------
1 file changed, 8 insertions(+), 16 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index fd342dffe4dc..8e9e8eab59ba 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -1102,32 +1102,24 @@ static struct platform_driver adi_gpio_driver = {
},
};
+static struct platform_driver * const drivers[] = {
+ &adi_pinctrl_driver,
+ &adi_gpio_pint_driver,
+ &adi_gpio_driver,
+};
+
static int __init adi_pinctrl_setup(void)
{
int ret;
- ret = platform_driver_register(&adi_pinctrl_driver);
+ ret = platform_register_drivers(drivers, ARRAY_SIZE(drivers));
if (ret)
return ret;
- ret = platform_driver_register(&adi_gpio_pint_driver);
- if (ret)
- goto pint_error;
-
- ret = platform_driver_register(&adi_gpio_driver);
- if (ret)
- goto gpio_error;
-
#ifdef CONFIG_PM
register_syscore_ops(&gpio_pm_syscore_ops);
#endif
- return ret;
-gpio_error:
- platform_driver_unregister(&adi_gpio_pint_driver);
-pint_error:
- platform_driver_unregister(&adi_pinctrl_driver);
-
- return ret;
+ return 0;
}
arch_initcall(adi_pinctrl_setup);
--
2.5.0
--
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