From: Ira Weiny <[email protected]>
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 <[email protected]>
Reviewed-by: Dave Jiang <[email protected]>
Reviewed-by: Fan Ni <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
(cherry picked from commit c62926f730d08450502d36548e28dd727c998ace)
Signed-off-by: Michael Tokarev <[email protected]>
diff --git a/hw/cxl/cxl-cdat.c b/hw/cxl/cxl-cdat.c
index 3653aa56f0..931693f02d 100644
--- a/hw/cxl/cxl-cdat.c
+++ b/hw/cxl/cxl-cdat.c
@@ -62,7 +62,7 @@ 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;
--
2.39.2
