1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 2b2e1b80d759..1ef01647265f 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -598,6 +598,8 @@ static int cxl_read_afu_descriptor(struct cxl_afu *afu)
 
 static int cxl_afu_descriptor_looks_ok(struct cxl_afu *afu)
 {
+        int i;
+
         if (afu->psa && afu->adapter->ps_size <
                         (afu->pp_offset + afu->pp_size*afu->max_procs_virtualised)) {
                 dev_err(&afu->dev, "per-process PSA can't fit inside the PSA!\n");
@@ -607,6 +609,13 @@ static int cxl_afu_descriptor_looks_ok(struct cxl_afu *afu)
         if (afu->pp_psa && (afu->pp_size < PAGE_SIZE))
                 dev_warn(&afu->dev, "AFU uses < PAGE_SIZE per-process PSA!");
 
+        for (i = 0; i < afu->crs_num; i++) {
+                if ((cxl_afu_cr_read32(afu, i, 0) == 0)) {
+                        dev_err(&afu->dev, "ABORTING: AFU configuration record %i is invalid\n", i);
+                        return -EINVAL;
+                }
+        }
+
         return 0;
 }