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author | Ingo Molnar <mingo@elte.hu> | 2009-05-18 08:15:09 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-18 08:15:35 (GMT) |
commit | 1079cac0f4eb7d968395378b1625979d4c818dd6 (patch) | |
tree | d261058d95d27fe7250511d5fad69db30dc17731 /net/wimax/stack.c | |
parent | 5872144f64b34a5942f6b4acedc90b02de72c58b (diff) | |
parent | 1406de8e11eb043681297adf86d6892ff8efc27a (diff) | |
download | linux-fsl-qoriq-1079cac0f4eb7d968395378b1625979d4c818dd6.tar.xz |
Merge commit 'v2.6.30-rc6' into tracing/core
Merge reason: we were on an -rc4 base, sync up to -rc6
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/wimax/stack.c')
-rw-r--r-- | net/wimax/stack.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/net/wimax/stack.c b/net/wimax/stack.c index a0ee76b..933e142 100644 --- a/net/wimax/stack.c +++ b/net/wimax/stack.c @@ -338,8 +338,21 @@ out: */ void wimax_state_change(struct wimax_dev *wimax_dev, enum wimax_st new_state) { + /* + * A driver cannot take the wimax_dev out of the + * __WIMAX_ST_NULL state unless by calling wimax_dev_add(). If + * the wimax_dev's state is still NULL, we ignore any request + * to change its state because it means it hasn't been yet + * registered. + * + * There is no need to complain about it, as routines that + * call this might be shared from different code paths that + * are called before or after wimax_dev_add() has done its + * job. + */ mutex_lock(&wimax_dev->mutex); - __wimax_state_change(wimax_dev, new_state); + if (wimax_dev->state > __WIMAX_ST_NULL) + __wimax_state_change(wimax_dev, new_state); mutex_unlock(&wimax_dev->mutex); return; } @@ -376,7 +389,7 @@ EXPORT_SYMBOL_GPL(wimax_state_get); void wimax_dev_init(struct wimax_dev *wimax_dev) { INIT_LIST_HEAD(&wimax_dev->id_table_node); - __wimax_state_set(wimax_dev, WIMAX_ST_UNINITIALIZED); + __wimax_state_set(wimax_dev, __WIMAX_ST_NULL); mutex_init(&wimax_dev->mutex); mutex_init(&wimax_dev->mutex_reset); } |