[PATCH 5.17 185/219] memory: renesas-rpc-if: fix platform-device leak in error path

Greg Kroah-Hartman
2022-04-18T12:37:20Z

From: Johan Hovold <johan@kernel.org>

commit b452dbf24d7d9a990d70118462925f6ee287d135 upstream.

Make sure to free the flash platform device in the event that
registration fails during probe.

Fixes: ca7d8b980b67 ("memory: add Renesas RPC-IF driver")
Cc: stable@vger.kernel.org # 5.8
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20220303180632.3194-1-johan@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/memory/renesas-rpc-if.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -651,6 +651,7 @@ static int rpcif_probe(struct platform_d
struct platform_device *vdev;
struct device_node *flash;
const char *name;
+ int ret;

flash = of_get_next_child(pdev->dev.of_node, NULL);
if (!flash) {
@@ -674,7 +675,14 @@ static int rpcif_probe(struct platform_d
return -ENOMEM;
vdev->dev.parent = &pdev->dev;
platform_set_drvdata(pdev, vdev);
- return platform_device_add(vdev);
+
+ ret = platform_device_add(vdev);
+ if (ret) {
+ platform_device_put(vdev);
+ return ret;
+ }
+
+ return 0;
}

static int rpcif_remove(struct platform_device *pdev)