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| author | Yuan Can <yuancan@huawei.com> | 2022-11-24 06:19:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 12:15:15 +0300 |
| commit | 5b217f4e79c066b001c66e3b7aa062c2bc5c8ceb (patch) | |
| tree | 45dcbc5ad9970a3c5876355023735a0514a95576 /drivers | |
| parent | 295f59cd2cdeed841850d02dddde3a122cbf6fc6 (diff) | |
| download | linux-5b217f4e79c066b001c66e3b7aa062c2bc5c8ceb.tar.xz | |
tpm/tpm_ftpm_tee: Fix error handling in ftpm_mod_init()
[ Upstream commit 2b7d07f7acaac2c7750e420dcf4414588ede6d03 ]
The ftpm_mod_init() returns the driver_register() directly without checking
its return value, if driver_register() failed, the ftpm_tee_plat_driver is
not unregistered.
Fix by unregister ftpm_tee_plat_driver when driver_register() failed.
Fixes: 9f1944c23c8c ("tpm_ftpm_tee: register driver on TEE bus")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/tpm/tpm_ftpm_tee.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c index 6e3235565a4d..d9daaafdd295 100644 --- a/drivers/char/tpm/tpm_ftpm_tee.c +++ b/drivers/char/tpm/tpm_ftpm_tee.c @@ -397,7 +397,13 @@ static int __init ftpm_mod_init(void) if (rc) return rc; - return driver_register(&ftpm_tee_driver.driver); + rc = driver_register(&ftpm_tee_driver.driver); + if (rc) { + platform_driver_unregister(&ftpm_tee_plat_driver); + return rc; + } + + return 0; } static void __exit ftpm_mod_exit(void) |