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authorAlexey Starikovskiy <astarikovskiy@suse.de>2008-10-25 13:48:46 -0400
committerLen Brown <len.brown@intel.com>2008-11-11 18:35:42 -0500
commit0b7084ac67fb84f0cf2f8bc02d7e0dea8521dd2d (patch)
tree0a619ac7a700543e6ba69aa5a568e5678ec0603d /drivers/acpi/sleep/wakeup.c
parenta2f93aeadf97e870ff385030633a73e21146815d (diff)
ACPICA: Use spinlock for acpi_{en|dis}able_gpe
Disabling gpe might interfere with gpe detection/handling, thus producing "interrupt not handled" errors. Ironically, disabling of GPE from interrupt context is already under spinlock, so only userspace needs to start using it. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/sleep/wakeup.c')
-rw-r--r--drivers/acpi/sleep/wakeup.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index 38655eb132dc..dea4c23df764 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -88,7 +88,7 @@ void acpi_enable_wakeup_device(u8 sleep_state)
88 spin_unlock(&acpi_device_lock); 88 spin_unlock(&acpi_device_lock);
89 if (!dev->wakeup.flags.run_wake) 89 if (!dev->wakeup.flags.run_wake)
90 acpi_enable_gpe(dev->wakeup.gpe_device, 90 acpi_enable_gpe(dev->wakeup.gpe_device,
91 dev->wakeup.gpe_number, ACPI_ISR); 91 dev->wakeup.gpe_number);
92 spin_lock(&acpi_device_lock); 92 spin_lock(&acpi_device_lock);
93 } 93 }
94 spin_unlock(&acpi_device_lock); 94 spin_unlock(&acpi_device_lock);
@@ -122,7 +122,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
122 ACPI_GPE_TYPE_WAKE_RUN); 122 ACPI_GPE_TYPE_WAKE_RUN);
123 /* Re-enable it, since set_gpe_type will disable it */ 123 /* Re-enable it, since set_gpe_type will disable it */
124 acpi_enable_gpe(dev->wakeup.gpe_device, 124 acpi_enable_gpe(dev->wakeup.gpe_device,
125 dev->wakeup.gpe_number, ACPI_NOT_ISR); 125 dev->wakeup.gpe_number);
126 spin_lock(&acpi_device_lock); 126 spin_lock(&acpi_device_lock);
127 } 127 }
128 continue; 128 continue;
@@ -133,7 +133,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
133 /* Never disable run-wake GPE */ 133 /* Never disable run-wake GPE */
134 if (!dev->wakeup.flags.run_wake) { 134 if (!dev->wakeup.flags.run_wake) {
135 acpi_disable_gpe(dev->wakeup.gpe_device, 135 acpi_disable_gpe(dev->wakeup.gpe_device,
136 dev->wakeup.gpe_number, ACPI_NOT_ISR); 136 dev->wakeup.gpe_number);
137 acpi_clear_gpe(dev->wakeup.gpe_device, 137 acpi_clear_gpe(dev->wakeup.gpe_device,
138 dev->wakeup.gpe_number, ACPI_NOT_ISR); 138 dev->wakeup.gpe_number, ACPI_NOT_ISR);
139 } 139 }
@@ -162,7 +162,7 @@ static int __init acpi_wakeup_device_init(void)
162 dev->wakeup.gpe_number, 162 dev->wakeup.gpe_number,
163 ACPI_GPE_TYPE_WAKE_RUN); 163 ACPI_GPE_TYPE_WAKE_RUN);
164 acpi_enable_gpe(dev->wakeup.gpe_device, 164 acpi_enable_gpe(dev->wakeup.gpe_device,
165 dev->wakeup.gpe_number, ACPI_NOT_ISR); 165 dev->wakeup.gpe_number);
166 dev->wakeup.state.enabled = 1; 166 dev->wakeup.state.enabled = 1;
167 spin_lock(&acpi_device_lock); 167 spin_lock(&acpi_device_lock);
168 } 168 }