Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 11 insertions, 14 deletions

diff --git a/net/caif/cfrfml.c b/net/caif/cfrfml.c
index 6dc75d4f8d94..2b563ad04597 100644
--- a/net/caif/cfrfml.c
+++ b/net/caif/cfrfml.c
@@ -184,6 +184,11 @@ out:
 					rfml->serv.dev_info.id);
 	}
 	spin_unlock(&rfml->sync);
+
+	if (unlikely(err == -EAGAIN))
+		/* It is not possible to recover after drop of a fragment */
+		err = -EIO;
+
 	return err;
 }
 
@@ -218,7 +223,7 @@ static int cfrfml_transmit(struct cflayer *layr, struct cfpkt *pkt)
 	caif_assert(layr->dn->transmit != NULL);
 
 	if (!cfsrvl_ready(&rfml->serv, &err))
-		return err;
+		goto out;
 
 	err = -EPROTO;
 	if (cfpkt_getlen(pkt) <= RFM_HEAD_SIZE-1)
@@ -251,8 +256,11 @@ static int cfrfml_transmit(struct cflayer *layr, struct cfpkt *pkt)
 
 		err = cfrfml_transmit_segment(rfml, frontpkt);
 
-		if (err != 0)
+		if (err != 0) {
+			frontpkt = NULL;
 			goto out;
+		}
+
 		frontpkt = rearpkt;
 		rearpkt = NULL;
 
@@ -286,19 +294,8 @@ out:
 		if (rearpkt)
 			cfpkt_destroy(rearpkt);
 
-		if (frontpkt && frontpkt != pkt) {
-
+		if (frontpkt)
 			cfpkt_destroy(frontpkt);
-			/*
-			 * Socket layer will free the original packet,
-			 * but this packet may already be sent and
-			 * freed. So we have to return 0 in this case
-			 * to avoid socket layer to re-free this packet.
-			 * The return of shutdown indication will
-			 * cause connection to be invalidated anyhow.
-			 */
-			err = 0;
-		}
 	}
 
 	return err;