From: Zijun Hu quic_zijuhu@quicinc.com
According to DT spec, size of property 'alignment' is based on parent node’s #size-cells property.
But __reserved_mem_alloc_size() wrongly uses @dt_root_addr_cells to get the property obviously.
Fix by using @dt_root_size_cells instead of @dt_root_addr_cells.
Fixes: 3f0c82066448 ("drivers: of: add initialization code for dynamic reserved memory") Cc: stable@vger.kernel.org Signed-off-by: Zijun Hu quic_zijuhu@quicinc.com --- drivers/of/of_reserved_mem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 45517b9e57b1add36bdf2109227ebbf7df631a66..d2753756d7c30adcbd52f57338e281c16d821488 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -409,12 +409,12 @@ static int __init __reserved_mem_alloc_size(unsigned long node, const char *unam
prop = of_get_flat_dt_prop(node, "alignment", &len); if (prop) { - if (len != dt_root_addr_cells * sizeof(__be32)) { + if (len != dt_root_size_cells * sizeof(__be32)) { pr_err("invalid alignment property in '%s' node.\n", uname); return -EINVAL; } - align = dt_mem_next_cell(dt_root_addr_cells, &prop); + align = dt_mem_next_cell(dt_root_size_cells, &prop); }
nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL;