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Device properties framework fixes for 5.10-rc2

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Fix the secondary firmware node handling while manipulating the
 primary firmware node for a given device (Andy Shevchenko).
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Merge tag 'devprop-5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework fixes from Rafael Wysocki:
 "Fix the secondary firmware node handling while manipulating the
  primary firmware node for a given device (Andy Shevchenko)"

* tag 'devprop-5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Don't clear secondary pointer for shared primary firmware node
  device property: Keep secondary firmware node secondary by type
This commit is contained in:
Linus Torvalds 2020-10-30 12:53:49 -07:00
commit a5a16050d7
1 changed files with 3 additions and 1 deletions
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4
drivers/base/core.c
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@ -4264,6 +4264,7 @@ static inline bool fwnode_is_primary(struct fwnode_handle *fwnode)
*/
void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
{
struct device *parent = dev->parent;
struct fwnode_handle *fn = dev->fwnode;
if (fwnode) {
@ -4278,7 +4279,8 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
} else {
if (fwnode_is_primary(fn)) {
dev->fwnode = fn->secondary;
fn->secondary = NULL;
if (!(parent && fn == parent->fwnode))
fn->secondary = ERR_PTR(-ENODEV);
} else {
dev->fwnode = NULL;
}