linux-kernel - Re: bpfilter logging write errors in dmesg

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Message-ID: <20200730060654.GA17803@lst.de>
Date:   Thu, 30 Jul 2020 08:06:54 +0200
From:   Christoph Hellwig <hch@....de>
To:     Rodrigo Madera <rodrigo.madera@...il.com>
Cc:     hch@....de, christian.brauner@...ntu.com,
        linux-kernel@...r.kernel.org
Subject: Re: bpfilter logging write errors in dmesg

Ho Rodrigo,

please try this patch:

diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c
index 1905e01c3aa9a7..4494ea6056cdb8 100644
--- a/net/bpfilter/bpfilter_kern.c
+++ b/net/bpfilter/bpfilter_kern.c
@@ -39,7 +39,7 @@ static int __bpfilter_process_sockopt(struct sock *sk, int optname,
 {
 	struct mbox_request req;
 	struct mbox_reply reply;
-	loff_t pos;
+	loff_t pos = 0;
 	ssize_t n;
 	int ret = -EFAULT;