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| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-08-23 23:18:06 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-10-14 01:54:21 -0400 |
| commit | 786f18c666d7202a86a8aa42a98783b115fe8739 (patch) | |
| tree | e5c304ec8a0caf57b8b7d87a6e73cfa65e17d53d | |
| parent | b4bd8c66435a8cdf8c90334fb3b517a23ff2ab95 (diff) | |
| download | linux-3.10-786f18c666d7202a86a8aa42a98783b115fe8739.tar.gz linux-3.10-786f18c666d7202a86a8aa42a98783b115fe8739.tar.bz2 linux-3.10-786f18c666d7202a86a8aa42a98783b115fe8739.zip | |
ACPI: fix potential OOPS in power driver with CONFIG_ACPI_DEBUG
device was set to null and used before set in a debug printk
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/power.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index fec225d1b6b..fe67a8af520 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -216,10 +216,8 @@ static int acpi_power_off_device(acpi_handle handle) { int result = 0; acpi_status status = AE_OK; - struct acpi_device *device = NULL; struct acpi_power_resource *resource = NULL; - result = acpi_power_get_context(handle, &resource); if (result) return result; @@ -230,13 +228,13 @@ static int acpi_power_off_device(acpi_handle handle) if (resource->references) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is still in use, dereferencing\n", - device->pnp.bus_id)); + resource->device->pnp.bus_id)); return 0; } if (resource->state == ACPI_POWER_RESOURCE_STATE_OFF) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] already off\n", - device->pnp.bus_id)); + resource->device->pnp.bus_id)); return 0; } @@ -251,8 +249,7 @@ static int acpi_power_off_device(acpi_handle handle) return -ENOEXEC; /* Update the power resource's _device_ power state */ - device = resource->device; - device->power.state = ACPI_STATE_D3; + resource->device->power.state = ACPI_STATE_D3; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n", resource->name)); |