From 56af8f9af99223610f0582594bd4ac0a0320eb71 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 8 Jul 2012 14:08:10 +0300
Subject: [PATCH] cfg80211: fix oops due to unassigned set_monitor_enabled
callback
Quick fix for method being invoked without checking its existence.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/wireless/core.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/wireless/core.c b/net/wireless/core.c
index eb60410ae5887..e42a97b5b971e 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -774,8 +774,9 @@ void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
has_monitors_only_new = cfg80211_has_monitors_only(rdev);
if (has_monitors_only_new != has_monitors_only_old) {
- rdev->ops->set_monitor_enabled(&rdev->wiphy,
- has_monitors_only_new);
+ if (rdev->ops->set_monitor_enabled)
+ rdev->ops->set_monitor_enabled(&rdev->wiphy,
+ has_monitors_only_new);
if (!has_monitors_only_new) {
rdev->monitor_channel = NULL;
--
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