X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=blobdiff_plain;f=drivers%2Fnet%2Fnfp%2Fnfp_nfpu.c;h=f11afef35687ea946541083de26eec726bb912bf;hp=5775d8daec045dd535abb6722597989835d88d33;hb=1fdbf9b06a45d78f0f94b9c793847047070d6827;hpb=f5cba91b095d54e8d7fcea57e515b5b4453b02ba

diff --git a/drivers/net/nfp/nfp_nfpu.c b/drivers/net/nfp/nfp_nfpu.c
index 5775d8daec..f11afef356 100644
--- a/drivers/net/nfp/nfp_nfpu.c
+++ b/drivers/net/nfp/nfp_nfpu.c
@@ -75,8 +75,13 @@ nfpu_open(struct rte_pci_device *pci_dev, nfpu_desc_t *desc, int nfp)
 	/* barsz in log2 */
 	while (barsz >>= 1)
 		i++;
+
 	barsz = i;
 
+	/* Sanity check: we can assume any bar size less than 1MB an error */
+	if (barsz < 20)
+		return -1;
+
 	/* Getting address for NFP expansion BAR registers */
 	cfg_base = pci_dev->mem_resource[0].addr;
 	cfg_base = (uint8_t *)cfg_base + NFP_CFG_EXP_BAR_CFG_BASE;