diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
index 764cc1fe90ae..a2cb2d5544f5 100644
--- a/drivers/platform/x86/amd/pmf/core.c
+++ b/drivers/platform/x86/amd/pmf/core.c
@@ -452,6 +452,7 @@ static int amd_pmf_probe(struct platform_device *pdev)
 
 	mutex_init(&dev->lock);
 	mutex_init(&dev->update_mutex);
+	mutex_init(&dev->cb_mutex);
 
 	apmf_acpi_init(dev);
 	platform_set_drvdata(pdev, dev);
@@ -477,6 +478,7 @@ static void amd_pmf_remove(struct platform_device *pdev)
 	amd_pmf_dbgfs_unregister(dev);
 	mutex_destroy(&dev->lock);
 	mutex_destroy(&dev->update_mutex);
+	mutex_destroy(&dev->cb_mutex);
 	kfree(dev->buf);
 }