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| author | Sinan Kaya <[email protected]> | 2017-12-13 00:37:27 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2017-12-16 02:05:37 +0000 |
| commit | 099caa9137624e69d936a62ce585d1adaec385ab (patch) | |
| tree | 4875d09fcbe21718eb39b4c408b6b1bc02797ae3 /drivers/acpi/cppc_acpi.c | |
| parent | Linux 4.15-rc3 (diff) | |
| download | kernel-099caa9137624e69d936a62ce585d1adaec385ab.tar.gz kernel-099caa9137624e69d936a62ce585d1adaec385ab.zip | |
ACPI: GED: unregister interrupts during shutdown
Some GED interrupts could be pending by the time we are doing a reboot.
Even though GED driver uses devm_request_irq() to register the interrupt
handler, the handler is not being freed on time during a shutdown since
the driver is missing a shutdown callback.
If the ACPI handler is no longer available, this causes an interrupt
storm and delays shutdown.
1. Don't use devm family of functions for IRQ registration/free
2. Keep track of the events since free_irq() requires the dev_id
parameter passed into the request_irq() function.
3. Call free_irq() on both remove and shutdown explicitly.
Signed-off-by: Sinan Kaya <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
0 files changed, 0 insertions, 0 deletions