From: Patrick McHardy <kaber@trash.net>
Date: Tue, 11 Jun 2013 09:52:47 +0000 (-0700)
Subject: netlink: fix error propagation in netlink_mmap()
X-Git-Tag: v3.10-rc6~18^2~5
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=7cdbac71f911494aa7d0343be23c092ca84a5ed4;p=~emulex%2Finfiniband.git

netlink: fix error propagation in netlink_mmap()

Return the error if something went wrong instead of unconditionally
returning 0.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index d0b3dd60d38..57ee84d2147 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -371,7 +371,7 @@ static int netlink_mmap(struct file *file, struct socket *sock,
 	err = 0;
 out:
 	mutex_unlock(&nlk->pg_vec_lock);
-	return 0;
+	return err;
 }
 
 static void netlink_frame_flush_dcache(const struct nl_mmap_hdr *hdr)