[PATCH] P2P: Set correctly global->p2p_group_formation in wpas_p2p_join_start()

[Andrei Otcheretianski]

From: "Aloni, Adiel" <adiel.aloni at intel.com>

When a dedicated P2P device interface is used,
the global->p2p_group_formation would not set in p2p_join_start
if no separate group interface is used.
This would cause that in case of a failure in group formation,
the cleaning of p2p_in_provisioning is done on the wrong interface.
Fix this by setting the global->p2p_group_formation correctly in case
that the group interface is reusing wpa_s->parent.

Signed-off-by: Adiel Aloni <adiel.aloni at intel.com>
---
 wpa_supplicant/p2p_supplicant.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index 978aaa3..1654b04 100644
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -5092,17 +5092,18 @@ static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
 		os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
 			  sizeof(group->p2p_pin));
 		group->p2p_wps_method = wpa_s->p2p_wps_method;
-	} else {
-		/*
-		 * Need to mark the current interface for p2p_group_formation
-		 * when a separate group interface is not used. This is needed
-		 * to allow p2p_cancel stop a pending p2p_connect-join.
-		 * wpas_p2p_init_group_interface() addresses this for the case
-		 * where a separate group interface is used.
-		 */
-		wpa_s->global->p2p_group_formation = wpa_s;
 	}
 
+	/*
+	 * Need to mark the current interface for p2p_group_formation
+	 * when a separate group interface is not used. This is needed
+	 * to allow p2p_cancel stop a pending p2p_connect-join.
+	 * wpas_p2p_init_group_interface() addresses this for the case
+	 * where a separate group interface is used.
+	 */
+	if (group == wpa_s->parent)
+		wpa_s->global->p2p_group_formation = group;
+
 	group->p2p_in_provisioning = 1;
 	group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
 
-- 
2.7.4