HSI: omap_ssi_core: fix possible memory leak in ssi_probe()

If ssi_add_controller() returns error, it should call hsi_put_controller()
to give up the reference that was set in hsi_alloc_controller(), so that
it can call hsi_controller_release() to free controller and ports that
allocated in hsi_alloc_controller().

Fixes: b209e04 ("HSI: Introduce OMAP SSI driver")
Signed-off-by: Yang Yingliang <[email protected]>
Signed-off-by: Sebastian Reichel <[email protected]>

Author: Yang Yingliang

drivers/hsi/controllers/omap_ssi_core.c

@@ -502,8 +502,10 @@ static int ssi_probe(struct platform_device *pd)
 	platform_set_drvdata(pd, ssi);
 
 	err = ssi_add_controller(ssi, pd);
-	if (err < 0)
+	if (err < 0) {
+		hsi_put_controller(ssi);
 		goto out1;
+	}
 
 	pm_runtime_enable(&pd->dev);