From: Ira Weiny <ira.we...@intel.com>
The callback for building CDAT tables may return negative error codes.
This was previously unhandled and will result in potentially huge
allocations later on in ct3_build_cdat()
Detect the negative error code and defer cdat building.
Fixes: f5ee7413d592 ("hw/mem/cxl-type3: Add CXL CDAT Data Object Exchange")
Cc: Huai-Cheng Kuo <hch...@avery-design.com.tw>
Reviewed-by: Dave Jiang <dave.ji...@intel.com>
Reviewed-by: Fan Ni <fan...@samsung.com>
Signed-off-by: Ira Weiny <ira.we...@intel.com>
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Message-Id: <20240126120132.24248-2-jonathan.came...@huawei.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/cxl/cxl-cdat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/cxl/cxl-cdat.c b/hw/cxl/cxl-cdat.c
index 639a2db3e1..24829cf242 100644
--- a/hw/cxl/cxl-cdat.c
+++ b/hw/cxl/cxl-cdat.c
@@ -63,7 +63,7 @@ static void ct3_build_cdat(CDATObject *cdat, Error **errp)
cdat->built_buf_len = cdat->build_cdat_table(&cdat->built_buf,
cdat->private);
- if (!cdat->built_buf_len) {
+ if (cdat->built_buf_len <= 0) {
/* Build later as not all data available yet */
cdat->to_update = true;
return;
--
MST
