hw/block/nvme: fix potential compilation error

assert may be compiled to a noop and we could end up returning an
uninitialized status.

Fix this by always returning Internal Device Error as a fallback.

Note that, as pointed out by Philippe, per commit 262a69f4282 ("osdep.h:
Prohibit disabling assert() in supported builds") this shouldn't be
possible. But clean it up so we don't worry about it again.

Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
[k.jensen: split commit]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index f5538fd00f..de3d0ca51b 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1246,8 +1246,6 @@ static uint16_t nvme_check_zone_write(NvmeNamespace *ns, NvmeZone *zone,
 
 static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone)
 {
-    uint16_t status;
-
     switch (nvme_get_zone_state(zone)) {
     case NVME_ZONE_STATE_EMPTY:
     case NVME_ZONE_STATE_IMPLICITLY_OPEN:
@@ -1255,16 +1253,14 @@ static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone)
     case NVME_ZONE_STATE_FULL:
     case NVME_ZONE_STATE_CLOSED:
     case NVME_ZONE_STATE_READ_ONLY:
-        status = NVME_SUCCESS;
-        break;
+        return NVME_SUCCESS;
     case NVME_ZONE_STATE_OFFLINE:
-        status = NVME_ZONE_OFFLINE;
-        break;
+        return NVME_ZONE_OFFLINE;
     default:
         assert(false);
     }
 
-    return status;
+    return NVME_INTERNAL_DEV_ERROR;
 }
 
 static uint16_t nvme_check_zone_read(NvmeNamespace *ns, uint64_t slba,