From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Sun, 12 Nov 2017 23:15:09 +0000 (+0100)
Subject: net: core: maybe return -EEXIST in __dev_alloc_name
X-Git-Tag: v4.19~2192^2~33^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d6f295e9def0bee85b37bdffb95153721935c342;p=platform%2Fkernel%2Flinux-rpi.git

net: core: maybe return -EEXIST in __dev_alloc_name

If we're given format string with no %d, -EEXIST is a saner error code.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/dev.c b/net/core/dev.c
index cb3d95e..1bb856e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1106,7 +1106,7 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
 	 * when the name is long and there isn't enough space left
 	 * for the digits, or if all bits are used.
 	 */
-	return -ENFILE;
+	return p ? -ENFILE : -EEXIST;
 }
 
 static int dev_alloc_name_ns(struct net *net,