From 2f9f9f5210887b1019fbd0327ffdf7c3aff271fd Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 17 Jun 2016 11:55:22 +0200 Subject: [PATCH] rxrpc: fix uninitialized variable use Hashing the peer key was introduced for AF_INET, but gcc warns about the rxrpc_peer_hash_key function returning uninitialized data for any other value of srx->transport.family: net/rxrpc/peer_object.c: In function 'rxrpc_peer_hash_key': net/rxrpc/peer_object.c:57:15: error: 'p' may be used uninitialized in this function [-Werror=maybe-uninitialized] Assuming that nothing else can be set here, this changes the function to just return zero in case of an unknown address family. Fixes: be6e6707f6ee ("rxrpc: Rework peer object handling to use hash table and RCU") Signed-off-by: Arnd Bergmann Signed-off-by: David Howells --- net/rxrpc/peer_object.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index faf222c21698..6baad708f3b1 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -50,6 +50,9 @@ static unsigned long rxrpc_peer_hash_key(struct rxrpc_local *local, size = sizeof(srx->transport.sin.sin_addr); p = (u16 *)&srx->transport.sin.sin_addr; break; + default: + WARN(1, "AF_RXRPC: Unsupported transport address family\n"); + return 0; } /* Step through the peer address in 16-bit portions for speed */ -- 2.20.1