diff options
| author | David S. Miller <davem@davemloft.net> | 2013-04-07 18:37:01 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-07 18:37:01 -0400 |
| commit | d978a6361ad13f1f9694fcb7b5852d253a544d92 (patch) | |
| tree | 8e8a8c62286fab2c044c4b53563222c1b66d7cb0 /net/mac80211/chan.c | |
| parent | 8303e699f7089a1cd1421750fb33f289e5f3e1b9 (diff) | |
| parent | cb28ea3b13b86fb23448525f34720e659bda7aa8 (diff) | |
| download | linux-d978a6361ad13f1f9694fcb7b5852d253a544d92.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/nfc/microread/mei.c
net/netfilter/nfnetlink_queue_core.c
Pull in 'net' to get Eric Biederman's AF_UNIX fix, upon which
some cleanups are going to go on-top.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/chan.c')
| -rw-r--r-- | net/mac80211/chan.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 78c0d90dd641..931be419ab5a 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -63,6 +63,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local, enum ieee80211_chanctx_mode mode) { struct ieee80211_chanctx *ctx; + u32 changed; int err; lockdep_assert_held(&local->chanctx_mtx); @@ -76,6 +77,13 @@ ieee80211_new_chanctx(struct ieee80211_local *local, ctx->conf.rx_chains_dynamic = 1; ctx->mode = mode; + /* acquire mutex to prevent idle from changing */ + mutex_lock(&local->mtx); + /* turn idle off *before* setting channel -- some drivers need that */ + changed = ieee80211_idle_off(local); + if (changed) + ieee80211_hw_config(local, changed); + if (!local->use_chanctx) { local->_oper_channel_type = cfg80211_get_chandef_type(chandef); @@ -85,14 +93,17 @@ ieee80211_new_chanctx(struct ieee80211_local *local, err = drv_add_chanctx(local, ctx); if (err) { kfree(ctx); - return ERR_PTR(err); + ctx = ERR_PTR(err); + + ieee80211_recalc_idle(local); + goto out; } } + /* and keep the mutex held until the new chanctx is on the list */ list_add_rcu(&ctx->list, &local->chanctx_list); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); + out: mutex_unlock(&local->mtx); return ctx; |