diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-10-17 17:51:13 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-10-17 17:51:13 +0200 |
| commit | dbee356262bb1c84cfa585530e33e7003534052a (patch) | |
| tree | 63210fdf2058ac09b3d501171184aa88bdae59d7 /drivers | |
| parent | ee4cd32ee8a68e22081f698602e4315fb4272853 (diff) | |
hwmon: (ams) Simplify IRQ handling routine
Simplify the IRQ handling routine of ams driver.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/ams/ams-core.c | 42 |
1 files changed, 17 insertions, 25 deletions
diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/hwmon/ams/ams-core.c index 9b4a0e7a564..6c9ace1b76f 100644 --- a/drivers/hwmon/ams/ams-core.c +++ b/drivers/hwmon/ams/ams-core.c @@ -99,39 +99,31 @@ static struct pmf_irq_client ams_shock_client = { */ static void ams_worker(struct work_struct *work) { - mutex_lock(&ams_info.lock); - - if (ams_info.has_device) { - unsigned long flags; + unsigned long flags; + u8 irqs_to_clear; - spin_lock_irqsave(&ams_info.irq_lock, flags); + mutex_lock(&ams_info.lock); - if (ams_info.worker_irqs & AMS_IRQ_FREEFALL) { - if (verbose) - printk(KERN_INFO "ams: freefall detected!\n"); + spin_lock_irqsave(&ams_info.irq_lock, flags); + irqs_to_clear = ams_info.worker_irqs; - ams_info.worker_irqs &= ~AMS_IRQ_FREEFALL; + if (ams_info.worker_irqs & AMS_IRQ_FREEFALL) { + if (verbose) + printk(KERN_INFO "ams: freefall detected!\n"); - /* we must call this with interrupts enabled */ - spin_unlock_irqrestore(&ams_info.irq_lock, flags); - ams_info.clear_irq(AMS_IRQ_FREEFALL); - spin_lock_irqsave(&ams_info.irq_lock, flags); - } + ams_info.worker_irqs &= ~AMS_IRQ_FREEFALL; + } - if (ams_info.worker_irqs & AMS_IRQ_SHOCK) { - if (verbose) - printk(KERN_INFO "ams: shock detected!\n"); + if (ams_info.worker_irqs & AMS_IRQ_SHOCK) { + if (verbose) + printk(KERN_INFO "ams: shock detected!\n"); - ams_info.worker_irqs &= ~AMS_IRQ_SHOCK; + ams_info.worker_irqs &= ~AMS_IRQ_SHOCK; + } - /* we must call this with interrupts enabled */ - spin_unlock_irqrestore(&ams_info.irq_lock, flags); - ams_info.clear_irq(AMS_IRQ_SHOCK); - spin_lock_irqsave(&ams_info.irq_lock, flags); - } + spin_unlock_irqrestore(&ams_info.irq_lock, flags); - spin_unlock_irqrestore(&ams_info.irq_lock, flags); - } + ams_info.clear_irq(irqs_to_clear); mutex_unlock(&ams_info.lock); } |