Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 23/49] staging: fbtft: Fix error path in fbtft_driver_module_init() | Date | Mon, 14 Feb 2022 10:25:49 +0100 |
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From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[ Upstream commit 426aca16e903b387a0b0001d62207a745c67cfd3 ]
If registering the platform driver fails, the function must not return without undoing the spi driver registration first.
Fixes: c296d5f9957c ("staging: fbtft: core support") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220118181338.207943-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/staging/fbtft/fbtft.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index 798a8fe98e957..247d0c23bb753 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -332,7 +332,10 @@ static int __init fbtft_driver_module_init(void) \ ret = spi_register_driver(&fbtft_driver_spi_driver); \ if (ret < 0) \ return ret; \ - return platform_driver_register(&fbtft_driver_platform_driver); \ + ret = platform_driver_register(&fbtft_driver_platform_driver); \ + if (ret < 0) \ + spi_unregister_driver(&fbtft_driver_spi_driver); \ + return ret; \ } \ \ static void __exit fbtft_driver_module_exit(void) \ -- 2.34.1
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