qcacmn: Check NAN iface with same name before creating another one
There were some corner cases reported in which NDIs are getting
created with same name. Providing fix for the same.
Change-Id: I84ea80580faa44809e257d3b17645808637b5d51
CRs-Fixed: 2072509
diff --git a/os_if/linux/nan/src/os_if_nan.c b/os_if/linux/nan/src/os_if_nan.c
index 92e4875..d65a1c6 100644
--- a/os_if/linux/nan/src/os_if_nan.c
+++ b/os_if/linux/nan/src/os_if_nan.c
@@ -32,6 +32,7 @@
#include "wlan_objmgr_psoc_obj.h"
#include "wlan_objmgr_pdev_obj.h"
#include "wlan_objmgr_vdev_obj.h"
+#include "wlan_utility.h"
/* NLA policy */
static const struct nla_policy
@@ -87,6 +88,14 @@
}
iface_name = nla_data(tb[QCA_WLAN_VENDOR_ATTR_NDP_IFACE_STR]);
+ nan_vdev = wlan_util_get_vdev_by_ifname(psoc, iface_name, WLAN_NAN_ID);
+ if (nan_vdev) {
+ cfg80211_err("NAN data interface %s is already present",
+ iface_name);
+ wlan_objmgr_vdev_release_ref(nan_vdev, WLAN_NAN_ID);
+ return -EEXIST;
+ }
+
if (!tb[QCA_WLAN_VENDOR_ATTR_NDP_TRANSACTION_ID]) {
cfg80211_err("transaction id is unavailable");
return -EINVAL;