From 5c727ba42ca34b53aec44f7791c6083215911f5b Mon Sep 17 00:00:00 2001 From: Yajun Deng Date: Thu, 5 Aug 2021 19:54:34 +0800 Subject: netdevice: add the case if dev is NULL commit b37a466837393af72fe8bcb8f1436410f3f173f3 upstream. Add the case if dev is NULL in dev_{put, hold}, so the caller doesn't need to care whether dev is NULL or not. Signed-off-by: Yajun Deng Signed-off-by: David S. Miller Cc: Pavel Machek Signed-off-by: Greg Kroah-Hartman --- include/linux/netdevice.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 288a58678256..c70b79dba1dc 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3777,7 +3777,8 @@ void netdev_run_todo(void); */ static inline void dev_put(struct net_device *dev) { - this_cpu_dec(*dev->pcpu_refcnt); + if (dev) + this_cpu_dec(*dev->pcpu_refcnt); } /** @@ -3788,7 +3789,8 @@ static inline void dev_put(struct net_device *dev) */ static inline void dev_hold(struct net_device *dev) { - this_cpu_inc(*dev->pcpu_refcnt); + if (dev) + this_cpu_inc(*dev->pcpu_refcnt); } /* Carrier loss detection, dial on demand. The functions netif_carrier_on -- cgit v1.2.3