ACPICA: Fix for fault if Load() fails

Fixed a problem with the Load operator when loading a table from
a buffer object. The input buffer was prematurely zeroed and/or
deleted.

http://www.acpica.org/bugzilla/show_bug.cgi?id=577

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 7361204b1eef..a9148677f037 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -524,6 +524,11 @@ void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
         u32 temp32;
         u8 buf_char;
 
+        if (!buffer) {
+                acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
+                return;
+        }
+
         if ((count < 4) || (count & 0x01)) {
                 display = DB_BYTE_DISPLAY;
         }