misc: Using smart pointers for memory Requests

This patch is changing the underlying type for RequestPtr from Request*
to shared_ptr<Request>. Having memory requests being managed by smart
pointers will simplify the code; it will also prevent memory leakage and
dangling pointers.

Change-Id: I7749af38a11ac8eb4d53d8df1252951e0890fde3
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/10996
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/gpu-compute/fetch_unit.cc b/src/gpu-compute/fetch_unit.cc
index 36ef1e1e8..a9cea9bf6 100644
--- a/src/gpu-compute/fetch_unit.cc
+++ b/src/gpu-compute/fetch_unit.cc
@@ -145,8 +145,9 @@ FetchUnit::initiateFetch(Wavefront *wavefront)
     }
 
     // set up virtual request
-    RequestPtr req = new Request(0, vaddr, size, Request::INST_FETCH,
-                               computeUnit->masterId(), 0, 0, 0);
+    RequestPtr req = std::make_shared<Request>(
+        0, vaddr, size, Request::INST_FETCH,
+        computeUnit->masterId(), 0, 0, nullptr);
 
     PacketPtr pkt = new Packet(req, MemCmd::ReadReq);
     // This fetchBlock is kind of faux right now - because the translations so
@@ -306,7 +307,6 @@ FetchUnit::processFetchReturn(PacketPtr pkt)
     wavefront->pendingFetch = false;
 
     delete pkt->senderState;
-    delete pkt->req;
     delete pkt;
 }