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path: root/drivers/acpi/utilities/utalloc.c
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Diffstat (limited to 'drivers/acpi/utilities/utalloc.c')
-rw-r--r--drivers/acpi/utilities/utalloc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 3dfb8a442b26..e7bf34a7b1d2 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -242,6 +242,10 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
{
acpi_status status = AE_OK;
+ if (!required_length) {
+ WARN_ON(1);
+ return AE_ERROR;
+ }
switch (buffer->length) {
case ACPI_NO_BUFFER:
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