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Message-ID: <6591e0fcb089f_21410c2946c@willemb.c.googlers.com.notmuch> Date: Sun, 31 Dec 2023 16:45:32 -0500 From: Willem de Bruijn <willemdebruijn.kernel@...il.com> To: Markus Elfring <Markus.Elfring@....de>, netdev@...r.kernel.org, kernel-janitors@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Willem de Bruijn <willemdebruijn.kernel@...il.com> Cc: LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] packet: Improve exception handling in fanout_add() Markus Elfring wrote: > From: Markus Elfring <elfring@...rs.sourceforge.net> > Date: Sun, 31 Dec 2023 16:30:51 +0100 > > The kfree() function was called in some cases by the fanout_add() function > even if the passed variable contained a null pointer. > This issue was detected by using the Coccinelle software. It is fine to call kfree with a possible NULL pointer: /** * kfree - free previously allocated memory * @object: pointer returned by kmalloc() or kmem_cache_alloc() * * If @object is NULL, no operation is performed. */ void kfree(const void *object)
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