net/devif: fix poll issue when ifdown

HedongGao · HedongGao · commit b0d465f7e63c · 2025-12-27T17:06:39.000+08:00
When the interface is in a down state, it triggers a poll busy loop issue.

Signed-off-by: gaohedong &lt;gaohedong@xiaomi.com&gt;
diff --git a/net/devif/devif_callback.c b/net/devif/devif_callback.c
@@ -286,7 +286,7 @@ FAR struct devif_callback_s *
    * to de-allocate connection callbacks reliably on NETDEV_DOWN event.
    */
 
-  if (dev && !(netdev_verify(dev) && (dev->d_flags & IFF_UP) != 0))
+  if (dev && !netdev_verify(dev))
     {
       net_unlock();
       return NULL;

Original file line number	Diff line number	Diff line change
`@@ -286,7 +286,7 @@ FAR struct devif_callback_s *`
`286`	`286`	`* to de-allocate connection callbacks reliably on NETDEV_DOWN event.`
`287`	`287`	`*/`
`288`	`288`
`289`		`- if (dev && !(netdev_verify(dev) && (dev->d_flags & IFF_UP) != 0))`
	`289`	`+ if (dev && !netdev_verify(dev))`
`290`	`290`	`{`
`291`	`291`	`net_unlock();`
`292`	`292`	`return NULL;`