staging: r8712u: Fix driver to support ad-hoc mode

Driver r8712u is unable to handle ad-hoc mode. The issue is that when
the driver first starts, there will not be an SSID for association.
The fix is to always call the "select and join from scan" routine when
in ad-hoc mode.

Note: Ad-hoc mode worked intermittently before. If the driver had
previously been associated, then things were OK.

Signed-off-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
index 8b1451d030698351f3f34f3d2ad12624227263c6..8486eb1503cc0884e9b518803d78a64c3f4b33e5 100644 (file)
--- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
@@ -68,7 +68,10 @@ static u8 do_join(struct _adapter *padapter)
        pmlmepriv->fw_state |= _FW_UNDER_LINKING;
        pmlmepriv->pscanned = plist;
        pmlmepriv->to_join = true;
-       if (_queue_empty(queue) == true) {
+
+       /* adhoc mode will start with an empty queue, but skip checking */
+       if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
+           _queue_empty(queue)) {
                if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
                        pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
                /* when set_ssid/set_bssid for do_join(), but scanning queue