Commit 29091a52 authored by Zijun Hu's avatar Zijun Hu Committed by Rob Herring (Arm)
Browse files

of: reserved-memory: Do not make kmemleak ignore freed address 



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: 658aafc8 ("memblock: exclude MEMBLOCK_NOMAP regions from kmemleak")
Signed-off-by: default avatarZijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250109-of_core_fix-v4-10-db8a72415b8c@quicinc.com


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 267b21d0

drivers/of/of_reserved_mem.c

+2 −1
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ static int __init early_init_dt_alloc_reserved_memory_arch(phys_addr_t size, 
			memblock_phys_free(base, size);

	}



	if (!err)

		kmemleak_ignore_phys(base);



	return err;