aboutsummaryrefslogtreecommitdiffstats
path: root/net/rfkill/rfkill.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-19 12:59:02 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-19 12:59:02 -0400
commit4309e092421e08f411830b2675bc1538a9b90e9b (patch)
tree018a21fceba5edb73ec0dfb770a602eef54cb564 /net/rfkill/rfkill.c
parent1fca25427482387689fa27594c992a961d98768f (diff)
parent195648bbc5ae0848e82f771ecf4cd7497054c212 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits) pkt_sched: Prevent livelock in TX queue running. Revert "pkt_sched: Add BH protection for qdisc_stab_lock." Revert "pkt_sched: Protect gen estimators under est_lock." pkt_sched: remove bogus block (cleanup) nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization netfilter: ctnetlink: sleepable allocation with spin lock bh netfilter: ctnetlink: fix sleep in read-side lock section netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks netfilter: ipt_addrtype: Fix matching of inverted destination address type dccp: Fix panic caused by too early termination of retransmission mechanism pkt_sched: Don't hold qdisc lock over qdisc_destroy(). pkt_sched: Add lockdep annotation for qdisc locks pkt_sched: Never schedule non-root qdiscs. removed unused #include <version.h> rt2x00: Fix txdone_entry_desc_flags b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306 mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE p54u: reset skb's data/tail pointer on requeue p54: move p54_vdcf_init to the right place. iwlwifi: fix printk newlines ...
Diffstat (limited to 'net/rfkill/rfkill.c')
-rw-r--r--net/rfkill/rfkill.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index d2d45655cd1a..35a9994e2339 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -150,6 +150,8 @@ static void update_rfkill_state(struct rfkill *rfkill)
150 * calls and handling all the red tape such as issuing notifications 150 * calls and handling all the red tape such as issuing notifications
151 * if the call is successful. 151 * if the call is successful.
152 * 152 *
153 * Suspended devices are not touched at all, and -EAGAIN is returned.
154 *
153 * Note that the @force parameter cannot override a (possibly cached) 155 * Note that the @force parameter cannot override a (possibly cached)
154 * state of RFKILL_STATE_HARD_BLOCKED. Any device making use of 156 * state of RFKILL_STATE_HARD_BLOCKED. Any device making use of
155 * RFKILL_STATE_HARD_BLOCKED implements either get_state() or 157 * RFKILL_STATE_HARD_BLOCKED implements either get_state() or
@@ -168,6 +170,9 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
168 int retval = 0; 170 int retval = 0;
169 enum rfkill_state oldstate, newstate; 171 enum rfkill_state oldstate, newstate;
170 172
173 if (unlikely(rfkill->dev.power.power_state.event & PM_EVENT_SLEEP))
174 return -EBUSY;
175
171 oldstate = rfkill->state; 176 oldstate = rfkill->state;
172 177
173 if (rfkill->get_state && !force && 178 if (rfkill->get_state && !force &&
@@ -214,7 +219,7 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
214 * 219 *
215 * This function toggles the state of all switches of given type, 220 * This function toggles the state of all switches of given type,
216 * unless a specific switch is claimed by userspace (in which case, 221 * unless a specific switch is claimed by userspace (in which case,
217 * that switch is left alone). 222 * that switch is left alone) or suspended.
218 */ 223 */
219void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state) 224void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
220{ 225{
@@ -239,8 +244,8 @@ EXPORT_SYMBOL(rfkill_switch_all);
239/** 244/**
240 * rfkill_epo - emergency power off all transmitters 245 * rfkill_epo - emergency power off all transmitters
241 * 246 *
242 * This kicks all rfkill devices to RFKILL_STATE_SOFT_BLOCKED, ignoring 247 * This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
243 * everything in its path but rfkill_mutex and rfkill->mutex. 248 * ignoring everything in its path but rfkill_mutex and rfkill->mutex.
244 */ 249 */
245void rfkill_epo(void) 250void rfkill_epo(void)
246{ 251{
@@ -458,13 +463,14 @@ static int rfkill_resume(struct device *dev)
458 if (dev->power.power_state.event != PM_EVENT_ON) { 463 if (dev->power.power_state.event != PM_EVENT_ON) {
459 mutex_lock(&rfkill->mutex); 464 mutex_lock(&rfkill->mutex);
460 465
466 dev->power.power_state.event = PM_EVENT_ON;
467
461 /* restore radio state AND notify everybody */ 468 /* restore radio state AND notify everybody */
462 rfkill_toggle_radio(rfkill, rfkill->state, 1); 469 rfkill_toggle_radio(rfkill, rfkill->state, 1);
463 470
464 mutex_unlock(&rfkill->mutex); 471 mutex_unlock(&rfkill->mutex);
465 } 472 }
466 473
467 dev->power.power_state = PMSG_ON;
468 return 0; 474 return 0;
469} 475}
470#else 476#else