diff options
Diffstat (limited to 'arch/x86/platform/efi/efi-bgrt.c')
| -rw-r--r-- | arch/x86/platform/efi/efi-bgrt.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c index f6a0c1b8e518..7145ec63c520 100644 --- a/arch/x86/platform/efi/efi-bgrt.c +++ b/arch/x86/platform/efi/efi-bgrt.c @@ -11,20 +11,21 @@ * published by the Free Software Foundation. */ #include <linux/kernel.h> +#include <linux/init.h> #include <linux/acpi.h> #include <linux/efi.h> #include <linux/efi-bgrt.h> struct acpi_table_bgrt *bgrt_tab; -void *bgrt_image; -size_t bgrt_image_size; +void *__initdata bgrt_image; +size_t __initdata bgrt_image_size; struct bmp_header { u16 id; u32 size; } __packed; -void efi_bgrt_init(void) +void __init efi_bgrt_init(void) { acpi_status status; void __iomem *image; @@ -39,6 +40,8 @@ void efi_bgrt_init(void) if (ACPI_FAILURE(status)) return; + if (bgrt_tab->header.length < sizeof(*bgrt_tab)) + return; if (bgrt_tab->version != 1) return; if (bgrt_tab->image_type != 0 || !bgrt_tab->image_address) |