linux-kernel - [PATCH v3 8/9] dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call

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Message-ID: <20250309062058.58910-9-xueshuai@linux.alibaba.com>
Date: Sun,  9 Mar 2025 14:20:57 +0800
From: Shuai Xue <xueshuai@...ux.alibaba.com>
To: vinicius.gomes@...el.com,
	dave.jiang@...el.com,
	Markus.Elfring@....de,
	fenghuay@...dia.com,
	vkoul@...nel.org
Cc: xueshuai@...ux.alibaba.com,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 8/9] dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call

The remove call stack is missing idxd cleanup to free bitmap, ida and
the idxd_device. Call idxd_free() helper routines to make sure we exit
gracefully.

Fixes: bfe1d56091c1 ("dmaengine: idxd: Init and probe for Intel data accelerators")
Cc: stable@...r.kernel.org
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Signed-off-by: Shuai Xue <xueshuai@...ux.alibaba.com>
---
 drivers/dma/idxd/init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 890b2bbd2c5e..ecb8d534fac4 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -1337,6 +1337,7 @@ static void idxd_remove(struct pci_dev *pdev)
 	destroy_workqueue(idxd->wq);
 	perfmon_pmu_remove(idxd);
 	put_device(idxd_confdev(idxd));
+	idxd_free(idxd);
 }
 
 static struct pci_driver idxd_pci_driver = {
-- 
2.39.3