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net: mv643xx: Use platform_register/unregister_drivers()

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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@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thierry Reding 2015-12-02 17:30:29 +01:00 committed by David S. Miller
parent 8c7d3972fd
commit 3b5dde70b1
1 changed files with 7 additions and 12 deletions
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19
drivers/net/ethernet/marvell/mv643xx_eth.c
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@ -3257,25 +3257,20 @@ static struct platform_driver mv643xx_eth_driver = {
},
};
static struct platform_driver * const drivers[] = {
&mv643xx_eth_shared_driver,
&mv643xx_eth_driver,
};
static int __init mv643xx_eth_init_module(void)
{
int rc;
rc = platform_driver_register(&mv643xx_eth_shared_driver);
if (!rc) {
rc = platform_driver_register(&mv643xx_eth_driver);
if (rc)
platform_driver_unregister(&mv643xx_eth_shared_driver);
}
return rc;
return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
module_init(mv643xx_eth_init_module);
static void __exit mv643xx_eth_cleanup_module(void)
{
platform_driver_unregister(&mv643xx_eth_driver);
platform_driver_unregister(&mv643xx_eth_shared_driver);
platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(mv643xx_eth_cleanup_module);