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Date: Tue, 19 Dec 2017 11:04:58 -0500 (EST) From: David Miller <davem@...emloft.net> To: arvind.yadav.cs@...il.com Cc: isdn@...ux-pingi.de, stephen@...workplumber.org, johannes.berg@...el.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [PATCH] isdn: avm: Handle return value of skb_dequeue() From: Arvind Yadav <arvind.yadav.cs@...il.com> Date: Sun, 17 Dec 2017 01:17:23 +0530 > skb_dequeue() will return NULL for an empty list or a pointer > to the head element. > > Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com> There is no code path where this is possible. The two call sites: 1) Explicitly add an SKB to the queue OR 2) Explcitily guard the call with an skb_queue_empty() check Therefore the stated condition is not possible.
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