diff mbox series

software node: Allow node addition to already existing device

Message ID 20210414075438.64547-1-heikki.krogerus@linux.intel.com
State Accepted
Commit b622b24519f5b008f6d4e20e5675eaffa8fbd87b
Headers show
Series software node: Allow node addition to already existing device | expand

Commit Message

Heikki Krogerus April 14, 2021, 7:54 a.m. UTC
If the node is added to an already exiting device, the node
needs to be also linked to the device separately.

This will make sure the reference count is kept in balance
also when the node is injected to a device afterwards.

Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Fixes: e68d0119e328 ("software node: Introduce device_add_software_node()")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
 drivers/base/swnode.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Greg Kroah-Hartman April 14, 2021, 9:17 a.m. UTC | #1
On Wed, Apr 14, 2021 at 12:13:35PM +0300, Heikki Krogerus wrote:
> +Greg
> 
> Sorry about that. Should I resend this?

No worries, I can pick it up, thanks

`b4` really is nice to use :)

greg k-h
Heikki Krogerus April 14, 2021, 11:34 a.m. UTC | #2
On Wed, Apr 14, 2021 at 11:17:55AM +0200, Greg Kroah-Hartman wrote:
> On Wed, Apr 14, 2021 at 12:13:35PM +0300, Heikki Krogerus wrote:
> > +Greg
> > 
> > Sorry about that. Should I resend this?
> 
> No worries, I can pick it up, thanks
> 
> `b4` really is nice to use :)

Yes, it's a really nice tool.

thanks,
diff mbox series

Patch

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 740333629b420..3cc11b813f28c 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -1045,6 +1045,7 @@  int device_add_software_node(struct device *dev, const struct software_node *nod
 	}
 
 	set_secondary_fwnode(dev, &swnode->fwnode);
+	software_node_notify(dev, KOBJ_ADD);
 
 	return 0;
 }
@@ -1118,8 +1119,8 @@  int software_node_notify(struct device *dev, unsigned long action)
 
 	switch (action) {
 	case KOBJ_ADD:
-		ret = sysfs_create_link(&dev->kobj, &swnode->kobj,
-					"software_node");
+		ret = sysfs_create_link_nowarn(&dev->kobj, &swnode->kobj,
+					       "software_node");
 		if (ret)
 			break;