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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-19 02:44:45 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-20 02:47:55 +0400 |
| commit | 6ee22e9d59151550a55d370b14109bdae8b58bda (patch) | |
| tree | a696cfa46f84f84cf38c44f8212d32f2f940063a /drivers/acpi/device_pm.c | |
| parent | 8112006f41fd76ddf4988f8ddd904563db85613c (diff) | |
| download | linux-6ee22e9d59151550a55d370b14109bdae8b58bda.tar.xz | |
ACPI / PM: Fix error code path for power resources initialization
Commit 781d737 (ACPI: Drop power resources driver) introduced a
bug in the power resources initialization error code path causing
a NULL pointer to be referenced in acpi_release_power_resource()
if there's an error triggering a jump to the 'err' label in
acpi_add_power_resource(). This happens because the list_node
field of struct acpi_power_resource has not been initialized yet
at this point and doing a list_del() on it is a bad idea.
To prevent this problem from occuring, initialize the list_node
field of struct acpi_power_resource upfront.
Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 3.9+ <stable@vger.kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/acpi/device_pm.c')
0 files changed, 0 insertions, 0 deletions