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| author | Ingo Molnar | 2013-04-19 13:03:08 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2013-04-19 13:03:08 +0200 |
| commit | 5379f8c0d72cab43bbe6d974ceb3ad84dddc2b8e (patch) | |
| tree | 524d8ac34cc8c7ef68b43e3ee6e08e27db86299c /net/mac80211/chan.c | |
| parent | Merge tag 'please-pull-cmci_rediscover' of git://git.kernel.org/pub/scm/linux... (diff) | |
| parent | amd64_edac: Add Family 16h support (diff) | |
| download | kernel-qcow2-linux-5379f8c0d72cab43bbe6d974ceb3ad84dddc2b8e.tar.gz kernel-qcow2-linux-5379f8c0d72cab43bbe6d974ceb3ad84dddc2b8e.tar.xz kernel-qcow2-linux-5379f8c0d72cab43bbe6d974ceb3ad84dddc2b8e.zip | |
Merge tag 'edac_amd_f16h' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras
Pull AMD F16h support for amd64_edac from Borislav Petkov.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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; |