From: Yuan Can <yuancan@xxxxxxxxxx> [ Upstream commit f71eaf2708be7831428eacae7db25d8ec6b8b4c5 ] 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: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus") Signed-off-by: Yuan Can <yuancan@xxxxxxxxxx> Reviewed-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx> Link: https://lore.kernel.org/r/20221123094200.12036-1-yuancan@xxxxxxxxxx Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/bus/sunxi-rsb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c index 20ed77f2b949..fac8627b04e3 100644 --- a/drivers/bus/sunxi-rsb.c +++ b/drivers/bus/sunxi-rsb.c @@ -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); -- 2.39.0