Messages in this thread Patch in this message | | | From | Gavin Shan <> | Subject | [PATCH v5 05/13] firmware: arm_sdei: Unregister driver on error in sdei_init() | Date | Tue, 22 Sep 2020 23:04:15 +1000 |
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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 <gshan@redhat.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: James Morse <james.morse@arm.com> --- 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 1fa4e577b78e..e7e9059c395b 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; } -- 2.23.0
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