platform/x86: thinkpad_acpi: check the return value of devm_mutex_init()

devm_mutex_init() can fail so check its return value.

Fixes: 38b9ab80db31 ("platform/x86: thinkpad_acpi: Move subdriver initialization to tpacpi_pdriver's probe.")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250305103146.53221-1-brgl@bgdev.pl
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index a7e82157bd673faf3e3479477ded287f72c74977..4a581a6d66779cfa531afaaf3c2482d00930ac49 100644 (file)
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -11849,7 +11849,9 @@ static int __init tpacpi_pdriver_probe(struct platform_device *pdev)
 {
        int ret;
 
-       devm_mutex_init(&pdev->dev, &tpacpi_inputdev_send_mutex);
+       ret = devm_mutex_init(&pdev->dev, &tpacpi_inputdev_send_mutex);
+       if (ret)
+               return ret;
 
        tpacpi_inputdev = devm_input_allocate_device(&pdev->dev);
        if (!tpacpi_inputdev)