Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index 7bcee41..3ca4daf 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -295,14 +295,13 @@
 {
 	struct dlci_local	*dlp;
 	struct frad_local	*flp;
-	int			err;
 
 	netif_stop_queue(dev);
 
 	dlp = netdev_priv(dev);
 
 	flp = netdev_priv(dlp->slave);
-	err = (*flp->deactivate)(dlp->slave, dev);
+	(*flp->deactivate)(dlp->slave, dev);
 
 	return 0;
 }