Merge branch 'pxa-palm' into pxa-machines

[linux-2.6-omap-h63xx.git] / drivers / acpi / utilities / utalloc.c

diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 3dfb8a442b2604e4186c2dd901efb4ef67bfd2b3..7dcb67e0b215d1d56de71cff60edf3f4e56b2b9b 100644 (file)
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -242,6 +242,12 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 {
        acpi_status status = AE_OK;
 
+       /* Parameter validation */
+
+       if (!buffer || !required_length) {
+               return (AE_BAD_PARAMETER);
+       }
+
        switch (buffer->length) {
        case ACPI_NO_BUFFER: