Revert "net: core: maybe return -EEXIST in __dev_alloc_name"

This reverts commit d6f295e; some userspace (in the case we noticed it's wpa_supplicant), is relying on the current error code to determine that a fixed name interface already exists. Reported-by: Jouni Malinen <[email protected]> Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
thoughtpolice · Dec 5, 2017 · 029b6d1 · 029b6d1
1 parent 42d779f
commit 029b6d1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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 p ? -ENFILE : -EEXIST;
+	return -ENFILE;
 }
 
 static int dev_alloc_name_ns(struct net *net,