]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
of: reserved-memory: Do not make kmemleak ignore freed address
authorZijun Hu <quic_zijuhu@quicinc.com>
Thu, 9 Jan 2025 13:27:01 +0000 (21:27 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Mar 2025 11:50:07 +0000 (12:50 +0100)
commit8049a0845bfc87c96af8b44a9436f3d91079e602
tree330af3e740239619587b688de1826bd23195d22c
parentca36f0848eb8c1bdc307c4921f3ec459b2011cc4
of: reserved-memory: Do not make kmemleak ignore freed address

[ Upstream commit 29091a52562bca4d6e678dd8f0085dac119d6a21 ]

early_init_dt_alloc_reserved_memory_arch() will free address @base when
suffers memblock_mark_nomap() error, but it still makes kmemleak ignore
the freed address @base via kmemleak_ignore_phys().

That is unnecessary, besides, also causes unnecessary warning messages:

kmemleak_ignore_phys()
 -> make_black_object()
    -> paint_ptr()
       -> kmemleak_warn() // warning message here.

Fix by avoiding kmemleak_ignore_phys() when suffer the error.

Fixes: 658aafc8139c ("memblock: exclude MEMBLOCK_NOMAP regions from kmemleak")
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250109-of_core_fix-v4-10-db8a72415b8c@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/of/of_reserved_mem.c