firmware: imx: scu: Fix possible memory leak in imx_scu_probe()

'chan_name' is malloced in imx_scu_probe() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.

Fixes: edbee09 ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Wei Yongjun <[email protected]>
Reviewed-by: Dong Aisheng <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>

Author: Wei Yongjun

drivers/firmware/imx/imx-scu.c

@@ -313,6 +313,7 @@ static int imx_scu_probe(struct platform_device *pdev)
 			if (ret != -EPROBE_DEFER)
 				dev_err(dev, "Failed to request mbox chan %s ret %d\n",
 					chan_name, ret);
+			kfree(chan_name);
 			return ret;
 		}