From 0f3ee280331e28b81560715356d47351a6016bce Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 13 May 2021 09:58:40 -0700 Subject: net: caif: Drop unnecessary NULL check after container_of The first parameter passed to chnl_recv_cb() can never be NULL since all callers dereferenced it. Consequently, container_of() on it is also never NULL, even though the reference into the structure points to the first element of the structure. The NULL check is therefore unnecessary. On top of that, it is misleading to perform a NULL check on the result of container_of() because the position of the contained element could change, which would make the test invalid. Remove the unnecessary NULL check. This change was made automatically with the following Coccinelle script. @@ type t; identifier v; statement s; @@ <+... ( t v = container_of(...); | v = container_of(...); ) ... when != v - if (\( !v \| v == NULL \) ) s ...+> Signed-off-by: Guenter Roeck Signed-off-by: David S. Miller --- net/caif/chnl_net.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'net/caif/chnl_net.c') diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index fadc7c8a3107..37b67194c0df 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -76,8 +76,6 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) u8 buf; priv = container_of(layr, struct chnl_net, chnl); - if (!priv) - return -EINVAL; skb = (struct sk_buff *) cfpkt_tonative(pkt); -- cgit v1.2.3