The patch titled Subject: lib/genalloc: fix device leak in of_gen_pool_get() has been added to the -mm mm-nonmm-unstable branch. Its filename is lib-genalloc-fix-device-leak-in-of_gen_pool_get.patch
This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...
This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------ From: Johan Hovold johan@kernel.org Subject: lib/genalloc: fix device leak in of_gen_pool_get() Date: Wed, 24 Sep 2025 10:02:07 +0200
Make sure to drop the reference taken when looking up the genpool platform device in of_gen_pool_get() before returning the pool.
Note that holding a reference to a device does typically not prevent its devres managed resources from being released so there is no point in keeping the reference.
Link: https://lkml.kernel.org/r/20250924080207.18006-1-johan@kernel.org Fixes: 9375db07adea ("genalloc: add devres support, allow to find a managed pool by device") Signed-off-by: Johan Hovold johan@kernel.org Cc: Philipp Zabel p.zabel@pengutronix.de Cc: Vladimir Zapolskiy vz@mleia.com Cc: stable@vger.kernel.org [3.10+] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
lib/genalloc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/lib/genalloc.c~lib-genalloc-fix-device-leak-in-of_gen_pool_get +++ a/lib/genalloc.c @@ -899,8 +899,11 @@ struct gen_pool *of_gen_pool_get(struct if (!name) name = of_node_full_name(np_pool); } - if (pdev) + if (pdev) { pool = gen_pool_get(&pdev->dev, name); + put_device(&pdev->dev); + } + of_node_put(np_pool);
return pool; _
Patches currently in -mm which might be from johan@kernel.org are
lib-genalloc-fix-device-leak-in-of_gen_pool_get.patch