From: Xiaolei Wang <xiaolei.wang@windriver.com>
To: andersson@kernel.org, mathieu.poirier@linaro.org,
shawnguo@kernel.org, festevam@gmail.com
Cc: xiaolei.wang@windriver.com, kernel@pengutronix.de,
linux-remoteproc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] remoteproc: core: release rproc->clean_table after rproc_attach() fails
Date: Thu, 24 Apr 2025 20:22:52 +0800 [thread overview]
Message-ID: <20250424122252.2777363-2-xiaolei.wang@windriver.com> (raw)
In-Reply-To: <20250424122252.2777363-1-xiaolei.wang@windriver.com>
When rproc_attach() fails release rproc->clean_table to
solve the following kmemleak:
unreferenced object 0xffff000086a99800 (size 1024):
comm "kworker/u12:3", pid 59, jiffies 4294893670 (age 121.140s)
hex dump (first 32 bytes):
00 00 00 00 00 80 00 00 00 00 00 00 00 00 10 00 ............
00 00 00 00 00 00 08 00 00 00 00 00 00 00 00 00 ............
backtrace:
[<000000008bbe4ca8>] slab_post_alloc_hook+0x98/0x3fc
[<000000003b8a272b>] __kmem_cache_alloc_node+0x13c/0x230
[<000000007a507c51>] __kmalloc_node_track_caller+0x5c/0x260
[<0000000037818dae>] kmemdup+0x34/0x60
[<00000000610f7f57>] rproc_boot+0x35c/0x56c
[<0000000065f8871a>] rproc_add+0x124/0x17c
[<00000000497416ee>] imx_rproc_probe+0x4ec/0x5d4
[<000000003bcaa37d>] platform_probe+0x68/0xd8
[<00000000771577f9>] really_probe+0x110/0x27c
[<00000000531fea59>] __driver_probe_device+0x78/0x12c
[<0000000080036a04>] driver_probe_device+0x3c/0x118
[<000000007e0bddcb>] __device_attach_driver+0xb8/0xf8
[<000000000cf1fa33>] bus_for_each_drv+0x84/0xe4
[<000000001a53b53e>] __device_attach+0xfc/0x18c
[<00000000d1a2a32c>] device_initial_probe+0x14/0x20
[<00000000d8f8b7ae>] bus_probe_device+0xb0/0xb4
unreferenced object 0xffff0000864c9690 (size 16):
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
---
drivers/remoteproc/remoteproc_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index b21eedefff87..6226e2d12a97 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -1656,6 +1656,7 @@ static int rproc_attach(struct rproc *rproc)
unprepare_device:
/* release HW resources if needed */
rproc_unprepare_device(rproc);
+ kfree(rproc->clean_table);
disable_iommu:
rproc_disable_iommu(rproc);
return ret;
--
2.25.1
next prev parent reply other threads:[~2025-04-24 12:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-24 12:22 [PATCH 1/2] remoteproc: imx_rproc: release carveout under imx_rproc after rproc_attach() fails Xiaolei Wang
2025-04-24 12:22 ` Xiaolei Wang [this message]
2025-04-25 16:47 ` Mathieu Poirier
2025-04-26 0:07 ` xiaolei wang
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