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netdevice: add the case if dev is NULL
commit b37a466837
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 <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Pavel Machek <pavel@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
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1 changed files with 4 additions and 2 deletions
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@ -3980,7 +3980,8 @@ void netdev_run_todo(void);
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*/
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static inline void dev_put(struct net_device *dev)
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{
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this_cpu_dec(*dev->pcpu_refcnt);
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if (dev)
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this_cpu_dec(*dev->pcpu_refcnt);
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}
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/**
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@ -3991,7 +3992,8 @@ static inline void dev_put(struct net_device *dev)
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*/
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static inline void dev_hold(struct net_device *dev)
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{
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this_cpu_inc(*dev->pcpu_refcnt);
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if (dev)
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this_cpu_inc(*dev->pcpu_refcnt);
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}
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/* Carrier loss detection, dial on demand. The functions netif_carrier_on
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