From 63627cae41e33763ca967bd2bb8cfe5d281bfe64 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 22 Sep 2020 23:04:15 +1000 Subject: [PATCH] firmware: arm_sdei: Unregister driver on error in sdei_init() The SDEI platform device is created from device-tree node or ACPI (SDEI) table. For the later case, the platform device is created explicitly by this module. It'd better to unregister the driver on failure to create the device to keep the symmetry. The driver, owned by this module, isn't needed if the device isn't existing. Besides, the errno (@ret) should be updated accordingly in this case. Signed-off-by: Gavin Shan Reviewed-by: Jonathan Cameron Reviewed-by: James Morse Link: https://lore.kernel.org/r/20200922130423.10173-6-gshan@redhat.com Signed-off-by: Will Deacon --- drivers/firmware/arm_sdei.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index 1fa4e57..e7e9059 100644 --- a/drivers/firmware/arm_sdei.c +++ b/drivers/firmware/arm_sdei.c @@ -1090,9 +1090,12 @@ static int __init sdei_init(void) pdev = platform_device_register_simple(sdei_driver.driver.name, 0, NULL, 0); - if (IS_ERR(pdev)) - pr_info("Failed to register ACPI:SDEI platform device %ld\n", - PTR_ERR(pdev)); + if (IS_ERR(pdev)) { + ret = PTR_ERR(pdev); + platform_driver_unregister(&sdei_driver); + pr_info("Failed to register ACPI:SDEI platform device %d\n", + ret); + } return ret; } -- 2.7.4