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[Qemu-devel] [PATCH 2/3] virtio pmem: remove memdev null check
From: |
Pankaj Gupta |
Subject: |
[Qemu-devel] [PATCH 2/3] virtio pmem: remove memdev null check |
Date: |
Fri, 12 Jul 2019 13:05:53 +0530 |
Coverity reports that when we're assigning vi->size we handle the
"pmem->memdev is NULL" case; but we then pass it into
object_get_canonical_path(), which unconditionally dereferences it
and will crash if it is NULL. If this pointer can be NULL then we
need to do something else here.
We are removing 'pmem->memdev' null check here as memdev will never
be null in this function.
Signed-off-by: Pankaj Gupta <address@hidden>
---
hw/virtio/virtio-pmem.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/virtio-pmem.c b/hw/virtio/virtio-pmem.c
index adbfb603ab..17c196d107 100644
--- a/hw/virtio/virtio-pmem.c
+++ b/hw/virtio/virtio-pmem.c
@@ -134,8 +134,8 @@ static void virtio_pmem_fill_device_info(const VirtIOPMEM
*pmem,
VirtioPMEMDeviceInfo *vi)
{
vi->memaddr = pmem->start;
- vi->size = pmem->memdev ? memory_region_size(&pmem->memdev->mr) : 0;
- vi->memdev = object_get_canonical_path(OBJECT(pmem->memdev));
+ vi->size = memory_region_size(&pmem->memdev->mr);
+ vi->memdev = object_get_canonical_path(OBJECT(pmem->memdev));
}
static MemoryRegion *virtio_pmem_get_memory_region(VirtIOPMEM *pmem,
--
2.14.5