driver core/platform_device_add_data: free platform data before overwriting

Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 65cb4c397603..58ad8e8ad7a3 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -228,6 +228,7 @@ int platform_device_add_data(struct platform_device *pdev, const void *data,
                         return -ENOMEM;
         }
 
+        kfree(pdev->dev.platform_data);
         pdev->dev.platform_data = d;
         return 0;
 }