Commit 0ce65816 authored by Konstantin Khlebnikov's avatar Konstantin Khlebnikov Committed by Luis Henriques

of: return NUMA_NO_NODE from fallback of_node_to_nid()

commit c8fff7bc upstream.

Node 0 might be offline as well as any other numa node,
in this case kernel cannot handle memory allocation and crashes.
Signed-off-by: default avatarKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 0c3f061c ("of: implement of_node_to_nid as a weak function")
Signed-off-by: default avatarGrant Likely <grant.likely@linaro.org>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 7af6355e
......@@ -85,7 +85,7 @@ EXPORT_SYMBOL(of_n_size_cells);
#ifdef CONFIG_NUMA
int __weak of_node_to_nid(struct device_node *np)
{
return numa_node_id();
return NUMA_NO_NODE;
}
#endif
......
......@@ -580,7 +580,10 @@ static inline const char *of_prop_next_string(struct property *prop,
#if defined(CONFIG_OF) && defined(CONFIG_NUMA)
extern int of_node_to_nid(struct device_node *np);
#else
static inline int of_node_to_nid(struct device_node *device) { return 0; }
static inline int of_node_to_nid(struct device_node *device)
{
return NUMA_NO_NODE;
}
#endif
static inline struct device_node *of_find_matching_node(
......
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