Add missing generic_subdriver_exit() in generic_acpi_laptop_init()
in error path.

Fixes: ee7fa5029de8 ("LoongArch: Add ACPI-based generic laptop driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/platform/loongarch/loongson-laptop.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/platform/loongarch/loongson-laptop.c b/drivers/platform/loongarch/loongson-laptop.c
index d9f82c3991c0..a9fdfac50f35 100644
--- a/drivers/platform/loongarch/loongson-laptop.c
+++ b/drivers/platform/loongarch/loongson-laptop.c
@@ -582,6 +582,8 @@ static int __init generic_acpi_laptop_init(void)
 	for (i = 0; i < ARRAY_SIZE(generic_sub_drivers); i++) {
 		ret = generic_subdriver_init(&generic_sub_drivers[i]);
 		if (ret < 0) {
+			while (--i >= 0)
+				generic_subdriver_exit(&generic_sub_drivers[i]);
 			input_free_device(generic_inputdev);
 			return ret;
 		}
@@ -589,6 +591,8 @@ static int __init generic_acpi_laptop_init(void)
 
 	ret = input_register_device(generic_inputdev);
 	if (ret < 0) {
+		while (--i >= 0)
+			generic_subdriver_exit(&generic_sub_drivers[i]);
 		input_free_device(generic_inputdev);
 		pr_err("Unable to register input device\n");
 		return ret;
-- 
2.25.1