pickit2: avoid NULL dereference in close code path

diff --git a/src/hardware/microchip-pickit2/api.c b/src/hardware/microchip-pickit2/api.c
index 48fb849a9a001e3f14042bfa85f7d876a73d2b3d..4eb755d274d057e3eae731e378c8f815b9589e4e 100644 (file)
--- a/src/hardware/microchip-pickit2/api.c
+++ b/src/hardware/microchip-pickit2/api.c
@@ -232,6 +232,8 @@ static int dev_close(struct sr_dev_inst *sdi)
        usb = sdi->conn;
        devc = sdi->priv;
 
+       if (!usb)
+               return SR_OK;
        if (!usb->devhdl)
                return SR_OK;