This is a note to let you know that I've just added the patch titled ASoC: mxs: Fix error handling in mxs_sgtl5000_probe to the 5.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-mxs-fix-error-handling-in-mxs_sgtl5000_probe.patch and it can be found in the queue-5.17 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 21c920c434afe6bc65f635e11523c1b6f695dfd6 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Tue Mar 8 02:01:44 2022 +0000 ASoC: mxs: Fix error handling in mxs_sgtl5000_probe [ Upstream commit 6ae0a4d8fec551ec581d620f0eb1fe31f755551c ] This function only calls of_node_put() in the regular path. And it will cause refcount leak in error paths. For example, when codec_np is NULL, saif_np[0] and saif_np[1] are not NULL, it will cause leaks. of_node_put() will check if the node pointer is NULL, so we can call it directly to release the refcount of regular pointers. Fixes: e968194b45c4 ("ASoC: mxs: add device tree support for mxs-sgtl5000") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Link: https://lore.kernel.org/r/20220308020146.26496-1-linmq006@xxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c index 2412dc7e65d4..746f40938675 100644 --- a/sound/soc/mxs/mxs-sgtl5000.c +++ b/sound/soc/mxs/mxs-sgtl5000.c @@ -118,6 +118,9 @@ static int mxs_sgtl5000_probe(struct platform_device *pdev) codec_np = of_parse_phandle(np, "audio-codec", 0); if (!saif_np[0] || !saif_np[1] || !codec_np) { dev_err(&pdev->dev, "phandle missing or invalid\n"); + of_node_put(codec_np); + of_node_put(saif_np[0]); + of_node_put(saif_np[1]); return -EINVAL; }