Merge tag 'v3.6' into staging/for_v3.7

Linux 3.6

* tag 'v3.6': (562 commits)
  Linux 3.6
  vfs: dcache: fix deadlock in tree traversal
  mtdchar: fix offset overflow detection
  thp: avoid VM_BUG_ON page_count(page) false positives in __collapse_huge_page_copy
  iommu/amd: Fix wrong assumption in iommu-group specific code
  netdev: octeon: fix return value check in octeon_mgmt_init_phy()
  ALSA: snd-usb: fix next_packet_size calls for pause case
  inetpeer: fix token initialization
  qlcnic: Fix scheduling while atomic bug
  bnx2: Clean up remaining iounmap
  trivial select_parent documentation fix
  net: phy: smsc: Implement PHY config_init for LAN87xx
  smsc75xx: fix resume after device reset
  um: Preinclude include/linux/kern_levels.h
  um: Fix IPC on um
  netdev: pasemi: fix return value check in pasemi_mac_phy_init()
  team: fix return value check
  l2tp: fix return value check
  USB: Fix race condition when removing host controllers
  USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
  ...

1 files changed, 3 insertions, 2 deletions

diff --git a/net/caif/cfsrvl.c b/net/caif/cfsrvl.c
index dd485f6128e8..ba217e90765e 100644
--- a/net/caif/cfsrvl.c
+++ b/net/caif/cfsrvl.c
@@ -211,9 +211,10 @@ void caif_client_register_refcnt(struct cflayer *adapt_layer,
 					void (*put)(struct cflayer *lyr))
 {
 	struct cfsrvl *service;
-	service = container_of(adapt_layer->dn, struct cfsrvl, layer);
 
-	WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL);
+	if (WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL))
+		return;
+	service = container_of(adapt_layer->dn, struct cfsrvl, layer);
 	service->hold = hold;
 	service->put = put;
 }