diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2007-04-24 17:21:29 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2007-07-20 13:34:26 +1000 |
| commit | d1cd355a5e44dfe993efc0c0458ca9f99a28a9a3 (patch) | |
| tree | 9bcc28338f70b8c3c5076f2dbf0a8d3ce551f0b8 /arch/powerpc/kernel/prom.c | |
| parent | e679c5f445fe142940e0962de9c5c82f10d9357c (diff) | |
Consolidate of_get_next_child
This adds a read_lock around the child/next accesses on Sparc.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 1ad56d3c606..5fa221ce871 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -1241,30 +1241,6 @@ struct device_node *of_find_all_nodes(struct device_node *prev) EXPORT_SYMBOL(of_find_all_nodes); /** - * of_get_next_child - Iterate a node childs - * @node: parent node - * @prev: previous child of the parent node, or NULL to get first - * - * Returns a node pointer with refcount incremented, use - * of_node_put() on it when done. - */ -struct device_node *of_get_next_child(const struct device_node *node, - struct device_node *prev) -{ - struct device_node *next; - - read_lock(&devtree_lock); - next = prev ? prev->sibling : node->child; - for (; next != 0; next = next->sibling) - if (of_node_get(next)) - break; - of_node_put(prev); - read_unlock(&devtree_lock); - return next; -} -EXPORT_SYMBOL(of_get_next_child); - -/** * of_node_get - Increment refcount of a node * @node: Node to inc refcount, NULL is supported to * simplify writing of callers |