From 4b32319cdacd99be983e1a74128289ef52c5964e Mon Sep 17 00:00:00 2001
From: Klaus Jensen <k.jensen@samsung.com>
Date: Tue, 11 Apr 2023 20:54:44 +0200
Subject: [PATCH] hw/nvme: fix memory leak in nvme_dsm
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

The iocb (and the allocated memory to hold LBA ranges) leaks if reading
the LBA ranges fails.

Fix this by adding a free and an unref of the iocb.

Reported-by: Coverity (CID 1508281)
Fixes: d7d1474fd85d ("hw/nvme: reimplement dsm to allow cancellation")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
 hw/nvme/ctrl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 8b7be14209..ac24eeb5ed 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -2619,6 +2619,9 @@ static uint16_t nvme_dsm(NvmeCtrl *n, NvmeRequest *req)
         status = nvme_h2c(n, (uint8_t *)iocb->range, sizeof(NvmeDsmRange) * nr,
                           req);
         if (status) {
+            g_free(iocb->range);
+            qemu_aio_unref(iocb);
+
             return status;
         }
 
-- 
2.11.0