[ACPI] drivers/acpi/video.c: fix error path NULL pointer dereference

The Coverity checker spotted this bug in
acpi_video_device_lcd_query_levels().

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bd4887518373..724149d72d91 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
         if (!ACPI_SUCCESS(status))
                 return_VALUE(status);
         obj = (union acpi_object *)buffer.pointer;
-        if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) {
+        if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n"));
                 status = -EFAULT;
                 goto err;