diff options
author | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
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committer | David Vrabel <david.vrabel@csr.com> | 2008-10-20 16:07:19 +0100 |
commit | 61e0e79ee3c609eb34edf2fe023708cba6a79b1f (patch) | |
tree | 663deacffd4071120dc9badb70428fe5f124c7b9 /drivers/hwmon/ams/ams-core.c | |
parent | c15895ef30c2c03e99802951787183039a349d32 (diff) | |
parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) |
Merge branch 'master' into for-upstream
Conflicts:
Documentation/ABI/testing/sysfs-bus-usb
drivers/Makefile
Diffstat (limited to 'drivers/hwmon/ams/ams-core.c')
-rw-r--r-- | drivers/hwmon/ams/ams-core.c | 82 |
1 files changed, 34 insertions, 48 deletions
diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/hwmon/ams/ams-core.c index fbefa82a015..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); } @@ -223,34 +215,28 @@ int __init ams_init(void) void ams_exit(void) { - mutex_lock(&ams_info.lock); - - if (ams_info.has_device) { - /* Remove input device */ - ams_input_exit(); + /* Remove input device */ + ams_input_exit(); - /* Shut down implementation */ - ams_info.exit(); - - /* Flush interrupt worker - * - * We do this after ams_info.exit(), because an interrupt might - * have arrived before disabling them. - */ - flush_scheduled_work(); + /* Remove attributes */ + device_remove_file(&ams_info.of_dev->dev, &dev_attr_current); - /* Remove attributes */ - device_remove_file(&ams_info.of_dev->dev, &dev_attr_current); + /* Shut down implementation */ + ams_info.exit(); - /* Remove device */ - of_device_unregister(ams_info.of_dev); + /* Flush interrupt worker + * + * We do this after ams_info.exit(), because an interrupt might + * have arrived before disabling them. + */ + flush_scheduled_work(); - /* Remove handler */ - pmf_unregister_irq_client(&ams_shock_client); - pmf_unregister_irq_client(&ams_freefall_client); - } + /* Remove device */ + of_device_unregister(ams_info.of_dev); - mutex_unlock(&ams_info.lock); + /* Remove handler */ + pmf_unregister_irq_client(&ams_shock_client); + pmf_unregister_irq_client(&ams_freefall_client); } MODULE_AUTHOR("Stelian Pop, Michael Hanselmann"); |