This is a note to let you know that I've just added the patch titled remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev() to the 6.0-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: remoteproc-sysmon-fix-memory-leak-in-qcom_add_sysmon.patch and it can be found in the queue-6.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e5de5eb221f58cfdeb8de7c593802b3ccf6b1052 Author: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx> Date: Tue Nov 29 18:56:50 2022 +0800 remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev() [ Upstream commit e01ce676aaef3b13d02343d7e70f9637d93a3367 ] The kfree() should be called when of_irq_get_byname() fails or devm_request_threaded_irq() fails in qcom_add_sysmon_subdev(), otherwise there will be a memory leak, so add kfree() to fix it. Fixes: 027045a6e2b7 ("remoteproc: qcom: Add shutdown-ack irq") Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx> Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx> Link: https://lore.kernel.org/r/20221129105650.1539187-1-cuigaosheng1@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c index 57dde2a69b9d..15af52f8499e 100644 --- a/drivers/remoteproc/qcom_sysmon.c +++ b/drivers/remoteproc/qcom_sysmon.c @@ -652,7 +652,9 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc, if (sysmon->shutdown_irq != -ENODATA) { dev_err(sysmon->dev, "failed to retrieve shutdown-ack IRQ\n"); - return ERR_PTR(sysmon->shutdown_irq); + ret = sysmon->shutdown_irq; + kfree(sysmon); + return ERR_PTR(ret); } } else { ret = devm_request_threaded_irq(sysmon->dev, @@ -663,6 +665,7 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc, if (ret) { dev_err(sysmon->dev, "failed to acquire shutdown-ack IRQ\n"); + kfree(sysmon); return ERR_PTR(ret); } }