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authorRafael J. Wysocki <rjw@sisk.pl>2009-09-09 18:02:02 -0400
committerRafael J. Wysocki <rjw@sisk.pl>2009-09-09 18:02:02 -0400
commitbf992fa2bc1ad1bb2aeb0bdfadb43f236b9297fd (patch)
treed67f525c76b66956ba7ca0d40bc0fcda0e414700 /kernel/time/clockevents.c
parent9d7302299ee96ca954fe4ab8ca640333b6e19ad0 (diff)
parent7135a71b19be1faf48b7148d77844d03bc0717d6 (diff)
Merge branch 'master' into for-linus
Diffstat (limited to 'kernel/time/clockevents.c')
-rw-r--r--kernel/time/clockevents.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index a6dcd67b041d..620b58abdc32 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -137,11 +137,12 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
137 */ 137 */
138int clockevents_register_notifier(struct notifier_block *nb) 138int clockevents_register_notifier(struct notifier_block *nb)
139{ 139{
140 unsigned long flags;
140 int ret; 141 int ret;
141 142
142 spin_lock(&clockevents_lock); 143 spin_lock_irqsave(&clockevents_lock, flags);
143 ret = raw_notifier_chain_register(&clockevents_chain, nb); 144 ret = raw_notifier_chain_register(&clockevents_chain, nb);
144 spin_unlock(&clockevents_lock); 145 spin_unlock_irqrestore(&clockevents_lock, flags);
145 146
146 return ret; 147 return ret;
147} 148}
@@ -178,16 +179,18 @@ static void clockevents_notify_released(void)
178 */ 179 */
179void clockevents_register_device(struct clock_event_device *dev) 180void clockevents_register_device(struct clock_event_device *dev)
180{ 181{
182 unsigned long flags;
183
181 BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED); 184 BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
182 BUG_ON(!dev->cpumask); 185 BUG_ON(!dev->cpumask);
183 186
184 spin_lock(&clockevents_lock); 187 spin_lock_irqsave(&clockevents_lock, flags);
185 188
186 list_add(&dev->list, &clockevent_devices); 189 list_add(&dev->list, &clockevent_devices);
187 clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev); 190 clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev);
188 clockevents_notify_released(); 191 clockevents_notify_released();
189 192
190 spin_unlock(&clockevents_lock); 193 spin_unlock_irqrestore(&clockevents_lock, flags);
191} 194}
192EXPORT_SYMBOL_GPL(clockevents_register_device); 195EXPORT_SYMBOL_GPL(clockevents_register_device);
193 196
@@ -235,8 +238,9 @@ void clockevents_exchange_device(struct clock_event_device *old,
235void clockevents_notify(unsigned long reason, void *arg) 238void clockevents_notify(unsigned long reason, void *arg)
236{ 239{
237 struct list_head *node, *tmp; 240 struct list_head *node, *tmp;
241 unsigned long flags;
238 242
239 spin_lock(&clockevents_lock); 243 spin_lock_irqsave(&clockevents_lock, flags);
240 clockevents_do_notify(reason, arg); 244 clockevents_do_notify(reason, arg);
241 245
242 switch (reason) { 246 switch (reason) {
@@ -251,7 +255,7 @@ void clockevents_notify(unsigned long reason, void *arg)
251 default: 255 default:
252 break; 256 break;
253 } 257 }
254 spin_unlock(&clockevents_lock); 258 spin_unlock_irqrestore(&clockevents_lock, flags);
255} 259}
256EXPORT_SYMBOL_GPL(clockevents_notify); 260EXPORT_SYMBOL_GPL(clockevents_notify);
257#endif 261#endif