[PATCH] firmware: raspberrypi: fix possible memory leak in rpi_firmware_probe()

[Yang Yingliang]

In rpi_firmware_probe(), if mbox_request_channel() fails, the 'fw' will
not be freed through rpi_firmware_delete(), fix this leak by calling
kfree() in the error path.

Fixes: 1e7c57355a3b ("firmware: raspberrypi: Keep count of all consumers")
Signed-off-by: Yang Yingliang <yangyingliang at huawei.com>
---
 drivers/firmware/raspberrypi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index 4b8978b254f9..dba315f675bc 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -272,6 +272,7 @@ static int rpi_firmware_probe(struct platform_device *pdev)
 		int ret = PTR_ERR(fw->chan);
 		if (ret != -EPROBE_DEFER)
 			dev_err(dev, "Failed to get mbox channel: %d\n", ret);
+		kfree(fw);
 		return ret;
 	}
 
-- 
2.25.1