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bus: sunxi-rsb: Fix error handling in sunxi_rsb_init()

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[ Upstream commit f71eaf2708 ]

The sunxi_rsb_init() returns the platform_driver_register() directly
without checking its return value, if platform_driver_register() failed,
the sunxi_rsb_bus is not unregistered.
Fix by unregister sunxi_rsb_bus when platform_driver_register() failed.

Fixes: d787dcdb9c ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221123094200.12036-1-yuancan@huawei.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuan Can 2022-11-23 09:42:00 +00:00 committed by Greg Kroah-Hartman
parent 5f4543c938
commit bd0b17ab1b
1 changed files with 7 additions and 1 deletions
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8
drivers/bus/sunxi-rsb.c
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@ -861,7 +861,13 @@ static int __init sunxi_rsb_init(void)
return ret;
}
return platform_driver_register(&sunxi_rsb_driver);
ret = platform_driver_register(&sunxi_rsb_driver);
if (ret) {
bus_unregister(&sunxi_rsb_bus);
return ret;
}
return 0;
}
module_init(sunxi_rsb_init);