From 25985edcedea6396277003854657b5f3cb31a628 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 30 Mar 2011 22:57:33 -0300 Subject: Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi --- drivers/acpi/apei/ghes.c | 2 +- drivers/acpi/processor_throttling.c | 2 +- drivers/acpi/video.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index d1d484d4a06a..f703b2881153 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -241,7 +241,7 @@ static inline int ghes_severity(int severity) case CPER_SEV_FATAL: return GHES_SEV_PANIC; default: - /* Unkown, go panic */ + /* Unknown, go panic */ return GHES_SEV_PANIC; } } diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index fa84e9744330..ad3501739563 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -1164,7 +1164,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, */ if (!match_pr->flags.throttling) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Throttling Controll is unsupported " + "Throttling Control is unsupported " "on CPU %d\n", i)); continue; } diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 31e9e10f657e..ec574fc8fbc6 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1354,7 +1354,7 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video, status = acpi_video_bus_get_one_device(dev, video); if (ACPI_FAILURE(status)) { printk(KERN_WARNING PREFIX - "Cant attach device\n"); + "Can't attach device\n"); continue; } } @@ -1373,7 +1373,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) acpi_video_device_notify); if (ACPI_FAILURE(status)) { printk(KERN_WARNING PREFIX - "Cant remove video notify handler\n"); + "Can't remove video notify handler\n"); } if (device->backlight) { backlight_device_unregister(device->backlight); -- cgit v1.2.3-59-g8ed1b From 7bed50c5edf5cba8dd515a31191cbfb6065ddc85 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 26 Apr 2011 11:33:18 +0200 Subject: ACPI / PM: Avoid infinite recurrence while registering power resources There is at least one BIOS with a DSDT containing a power resource object with a _PR0 entry pointing back to that power resource. In consequence, while registering that power resource acpi_bus_get_power_flags() sees that it depends on itself and tries to register it again, which leads to an infinitely deep recurrence. This problem was introduced by commit bf325f9538d8c89312be305b9779e (ACPI / PM: Register power resource devices as soon as they are needed). To fix this problem use the observation that power resources cannot be power manageable and prevent acpi_bus_get_power_flags() from being called for power resource objects. References: https://bugzilla.kernel.org/show_bug.cgi?id=31872 Reported-and-tested-by: Pascal Dormeau Signed-off-by: Rafael J. Wysocki Acked-by: Len Brown Cc: stable@kernel.org --- drivers/acpi/scan.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/acpi') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index b136c9c1e531..449c556274c0 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -943,6 +943,10 @@ static int acpi_bus_get_flags(struct acpi_device *device) if (ACPI_SUCCESS(status)) device->flags.lockable = 1; + /* Power resources cannot be power manageable. */ + if (device->device_type == ACPI_BUS_TYPE_POWER) + return 0; + /* Presence of _PS0|_PR0 indicates 'power manageable' */ status = acpi_get_handle(device->handle, "_PS0", &temp); if (ACPI_FAILURE(status)) -- cgit v1.2.3-59-g8ed1b