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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-30 12:53:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-30 12:53:49 -0700
commita5a16050d78dd4a8a5a2a6614e64f76d59ef8a2e (patch)
tree891a6fe146cb004d8bb486be5fe4fbff49306fa4 /drivers
parentee176906dc882ba6223d834ae61790e7550515fd (diff)
parent99aed9227073fb34ce2880cbc7063e04185a65e1 (diff)
downloadlinux-a5a16050d78dd4a8a5a2a6614e64f76d59ef8a2e.tar.bz2
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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/core.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index c852f16c111b..78114ddac755 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -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;
}