diff options
| author | Chen Yu <yu.c.chen@intel.com> | 2015-10-25 01:02:19 +0800 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-12-13 17:48:55 +0000 |
| commit | 79f08032cd797dafafca537e55c78a66897107d7 (patch) | |
| tree | 70f7d78ff51d4e59bc1ba3bb358832e14ba8101f /include | |
| parent | 9bd08031ccfd4028d2df1c7ce6aa993ce003027b (diff) | |
ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
commit 49e4b84333f338d4f183f28f1f3c1131b9fb2b5a upstream.
Currently when the system is trying to uninstall the ACPI interrupt
handler, it uses acpi_gbl_FADT.sci_interrupt as the IRQ number.
However, the IRQ number that the ACPI interrupt handled is installed
for comes from acpi_gsi_to_irq() and that is the number that should
be used for the handler removal.
Fix this problem by using the mapped IRQ returned from acpi_gsi_to_irq()
as appropriate.
Acked-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/acpi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3b18cb3d5307..7e52e670d6ad 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -151,6 +151,12 @@ int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); void acpi_irq_stats_init(void); extern u32 acpi_irq_handled; extern u32 acpi_irq_not_handled; +extern unsigned int acpi_sci_irq; +#define INVALID_ACPI_IRQ ((unsigned)-1) +static inline bool acpi_sci_irq_valid(void) +{ + return acpi_sci_irq != INVALID_ACPI_IRQ; +} extern int sbf_port; extern unsigned long acpi_realmode_flags; |