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authorLv Zheng <lv.zheng@intel.com>2014-01-08 13:43:23 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-08 15:31:36 +0100
commitbb3fec146c8561441db058db07b3fbdd7fe7e1df (patch)
tree4ec8e389084149ebf95831cef14de002dddb5055 /drivers/acpi/acpica/utalloc.c
parent5af2b6351b3cc0dadd6888928005a61f2667c80d (diff)
ACPICA: Remove unused ACPI_FREE_BUFFER macro. No functional change.
This macro is no longer used by ACPICA and it is not public. Also update comments related to the use of ACPI_ALLOCATE_BUFFER and the use of acpi_os_free (kfree is equivalent and prefered in the kernel) to free the buffer. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/utalloc.c')
-rw-r--r--drivers/acpi/acpica/utalloc.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index 814267f5271..1851762fc5b 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -302,9 +302,13 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
return (AE_BUFFER_OVERFLOW);
case ACPI_ALLOCATE_BUFFER:
-
- /* Allocate a new buffer */
-
+ /*
+ * Allocate a new buffer. We directectly call acpi_os_allocate here to
+ * purposefully bypass the (optionally enabled) internal allocation
+ * tracking mechanism since we only want to track internal
+ * allocations. Note: The caller should use acpi_os_free to free this
+ * buffer created via ACPI_ALLOCATE_BUFFER.
+ */
buffer->pointer = acpi_os_allocate(required_length);
break;