diff options
| author | Mursalin Akon <makon@nvidia.com> | 2012-09-07 10:57:02 -0700 |
|---|---|---|
| committer | Matthew Pedro <mapedro@nvidia.com> | 2012-10-04 15:39:15 -0700 |
| commit | a4a73f7bc48e771e493e6e363e5c323ce8513ae9 (patch) | |
| tree | fb6f326baae081198bd769c95e1acbebe9d8d554 /drivers | |
| parent | 3ae23c3dab9151cca239513888d55146515931c1 (diff) | |
bcmdhd: use the wiphy from private data structure (i.e., wl_priv)
problem:
The macro wiphy_from_scan retrieves wiphy from
wl_priv->escan_info.wiphy which is in turn set by
a 'scan' initiated from kernel space (like
scheduled scan) or from user space (like iwlist command).
Without a scan, a 'connect' crashes in function
wl_inform_single_bss, with NULL pointer access,
as the variable wiphy (in turn, wl->escan_info.wiphy)
is not initialized properly.
solution:
wireless_device data structures maintained for both
STA and P2P mode point to the same wiphy (see,
wl_cfgp2p_register_ndev in wl_cfgp2p.c). So,
irrespective of whatever wireless_device is in
use, a scan will always set wl_priv->escan_info.wiphy
to the same wiphy. There is no point in getting
wiphy using wl_priv->escan_info.wiphy, rather use
the wiphy referred by all wireless_device structures.
Bug 1029792
Bug 1029733
Change-Id: I6d744950d3a053642ffa998b3c3f3ba60c0cb687
Signed-off-by: Mursalin Akon <makon@nvidia.com>
Reviewed-on: http://git-master/r/141629
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/bcmdhd/wl_cfg80211.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/bcmdhd/wl_cfg80211.h | 1 |
2 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/bcmdhd/wl_cfg80211.c b/drivers/net/wireless/bcmdhd/wl_cfg80211.c index 7f3e332dbfce..2c4e9a63dd9e 100644 --- a/drivers/net/wireless/bcmdhd/wl_cfg80211.c +++ b/drivers/net/wireless/bcmdhd/wl_cfg80211.c @@ -4693,7 +4693,7 @@ static s32 wl_inform_bss(struct wl_priv *wl) static s32 wl_inform_single_bss(struct wl_priv *wl, struct wl_bss_info *bi) { - struct wiphy *wiphy = wiphy_from_scan(wl); + struct wiphy *wiphy = wl_to_wiphy(wl); struct ieee80211_mgmt *mgmt; struct ieee80211_channel *channel; struct ieee80211_supported_band *band; diff --git a/drivers/net/wireless/bcmdhd/wl_cfg80211.h b/drivers/net/wireless/bcmdhd/wl_cfg80211.h index 37c8e5850c44..21446dc10708 100644 --- a/drivers/net/wireless/bcmdhd/wl_cfg80211.h +++ b/drivers/net/wireless/bcmdhd/wl_cfg80211.h @@ -612,7 +612,6 @@ wl_get_profile_by_netdev(struct wl_priv *wl, struct net_device *ndev) #define iscan_to_wl(i) ((struct wl_priv *)(i->data)) #define wl_to_iscan(w) (w->iscan) #define wl_to_conn(w) (&w->conn_info) -#define wiphy_from_scan(w) (w->escan_info.wiphy) #define wl_get_drv_status_all(wl, stat) \ (wl_get_status_all(wl, WL_STATUS_ ## stat)) #define wl_get_drv_status(wl, stat, ndev) \ |