early exit if unable to read from hw20160107-2

Signed-off-by: Bjørn Mork <bjorn@mork.no>

1 files changed, 5 insertions, 1 deletions

diff --git a/main.c b/main.c
index 4425ce3..1b43597 100644
--- a/main.c
+++ b/main.c
@@ -780,6 +780,11 @@ static int mwl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	SET_IEEE80211_DEV(hw, priv->dev);
 
 	rc = mwl_alloc_pci_resource(priv);
+
+	/* verify that we can communicate with the hardware */
+	if (!rc && !mwl_fwcmd_chk_adapter(priv))
+		rc = -ENODEV;
+
 	if (rc)
 		goto err_alloc_pci_resource;
 
@@ -791,7 +796,6 @@ static int mwl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 #endif
 
 	rc = mwl_init_firmware(priv, fw_name);
-
 	if (rc) {
 		wiphy_err(hw->wiphy, "%s: fail to initialize firmware\n",
 			  MWL_DRV_NAME);