package/kernel/mac80211/patches/344-0003-brcmfmac-check-for-wowl-support-before-enumerating-f.patch

   1 From: Franky Lin <frankyl@broadcom.com>
   2 Date: Wed, 17 Feb 2016 11:26:52 +0100
   3 Subject: [PATCH] brcmfmac: check for wowl support before enumerating feature
   4  flag
   5
   6 In some cases wiphy->wowlan could be NULL if firmware doesn't have the
   7 support. Driver should check for support before walking down the feature
   8 flags.
   9
  10 Reviewed-by: Arend Van Spriel <arend@broadcom.com>
  11 Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
  12 Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
  13 Signed-off-by: Franky Lin <frankyl@broadcom.com>
  14 Signed-off-by: Arend van Spriel <arend@broadcom.com>
  15 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  16 ---
  17
  18 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  19 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  20 @@ -6594,7 +6594,8 @@ struct brcmf_cfg80211_info *brcmf_cfg802
  21         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) {
  22                 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
  23  #ifdef CONFIG_PM
  24 -               if (wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT)
  25 +               if (wiphy->wowlan &&
  26 +                   wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT)
  27                         wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
  28  #endif
  29         }