devres: add devres_node_init()

Both alloc_dr() and devres_open_group() initialize devres_node.entry and
set devres_node.release. Add a helper, devres_node_init(), for this
pattern.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260202235210.55176-4-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index fd3e9dba8ff2cc71c1aac5cef905300ffa41d51e..bf07a6b167279c5e667cea78c575f341c7420e70 100644 (file)
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -42,6 +42,12 @@ struct devres_group {
        /* -- 8 pointers */
 };
 
+static void devres_node_init(struct devres_node *node, dr_release_t release)
+{
+       INIT_LIST_HEAD(&node->entry);
+       node->release = release;
+}
+
 static void set_node_dbginfo(struct devres_node *node, const char *name,
                             size_t size)
 {
@@ -124,8 +130,7 @@ static __always_inline struct devres *alloc_dr(dr_release_t release,
        if (!(gfp & __GFP_ZERO))
                memset(dr, 0, offsetof(struct devres, data));
 
-       INIT_LIST_HEAD(&dr->node.entry);
-       dr->node.release = release;
+       devres_node_init(&dr->node, release);
        return dr;
 }
 
@@ -561,10 +566,8 @@ void *devres_open_group(struct device *dev, void *id, gfp_t gfp)
        if (unlikely(!grp))
                return NULL;
 
-       grp->node[0].release = &group_open_release;
-       grp->node[1].release = &group_close_release;
-       INIT_LIST_HEAD(&grp->node[0].entry);
-       INIT_LIST_HEAD(&grp->node[1].entry);
+       devres_node_init(&grp->node[0], &group_open_release);
+       devres_node_init(&grp->node[1], &group_close_release);
        set_node_dbginfo(&grp->node[0], "grp<", 0);
        set_node_dbginfo(&grp->node[1], "grp>", 0);
        grp->id = grp;